Fear is a healthy sign that you're alive and properly feeling; it's when that fear becomes fright and controls you that you have an issue.  You're going to get a lot of posts on here that will tell you to get help... I will not discount that advice, and you probably need it, but that's not for me to say.  What I do know is that when it's me I always try to trace back anything that concerns me to its roots if and when I can.
For instance... I have a secret fear of cold, running water.  I guess that's not so secret anymore.  why do I fear cold running water?  Because I have a frightful memory of being in a bathtub at the age of 4.  The water was running cold and things were fun.  I was playing with the intensity of the water and was fascinated by how I could change it with the knob.  Then, I noticed a little piece on the top you could obviously pull out and wondered what it did.  Being the curious child that I was, I pulled it, and water was suddenly falling on me from above; COLD WATER!
Had I known there was such a thing as showerheads and that people used them all the time, I never would have given it a second thought.  As it is, being blind, not knowing that was even a possibility, and the fact that the water was cold which would startle anyone... I'm sure you get the point.  Obviously, I've faced it and owned it for what it is.  I go swimming, fishing, have ridden a few boats and so on.  That having been said, I do not like turning my back on the ocean, and I also dislike walking in the rain.
So, has a light fixture ever fallen on you?  Does your ceiling fan make funny noises that are possibly upseting you?  Have you ever touched the thing?  does it seem unstable for some odd reason?  Perhaps none of these are true, but these are all things I'd be asking myself if it were me in your shoes.

any insect, bird on my shoulder(I freaked out one once sort of clamped onto my right shoulder. Not a good time) and animals, though I'm petting cats and all that so Not all anymore. I was really skittish
because all of the cats here are not housecats but streetcats We havent taken one in though
edit, technically not street cats since they don't live in the street. they live on rooves and make small houses for themselves occasionaly.

Insects, all but mostly flying ones. But everyone says, "Oh they won't hurt you", Bro that isn't the issue. I've taken bee stings and hornet stings. I don't care about that. I care about the fact that they are in my fucking house, buzzing around my head. I don't like them outside either but I can deal with them. Especially big ones or ones that make a really low buzz  like beetles, cicadas, and locusts. I don't like it when bees circle around my head either. It has nothing to do with a sting though. Bees are mostly chill and won't bother you unless you're coming at them. Wasps and hornets though are a different matter.

I'm fucking terrified of any buzzing insects. I think this comes from a time I stepped on a bee in the grass barefoot when I was young... I'm not sure though, and I've not really gotten over it, just learned to hide it. Which is close enough for the general public, so...

One of these days I'm gonna have to go deliberately get stung by a bee, or a wasp, or a hornet, or something.  Reason?  It has yet to happen to me, and while I don't exactly want it to happen to me, I honestly believe the reality is not as bad as what I'm imagining.  Like my cousins used to try to freak me out when I was four or five years old... "It's a bee!  It's a bee!"  Being blind, I think we're all prone to be at least a little concerned about flying objects we can't see... I still flinch when people start throwing around anything as big as, or bigger than a tenis ball.  Something that flys and has a mind of it's own though, and sounds menacing on top of that?  Like a little biplane getting ready to dive bomb you and... Yeah, I'm not in to all that, but I think if I could feel that at least once in my life it won't be as bad as imagining it happen anymore.
And the sad thing is, I've been super, super close!  So close, in fact, that the stupid things have flown right underneath my hands, touched my feet, into my hair, around a can of coke I was holding... I've been so close it's not funny!

I'm not super fond of buzzing insects either, though for me it's a risk of harm. If I know the buzzing insect is a fly, can be absolutely certain of it, I'm just annoyed. The anxiety comes from not knowing what it is.

A couple of weeks back, I went downstairs to put a bag of trash out back in the dumpster, which has a closed lid. It was warm outside, and as I approached, I heard a couple of buzzing insects. Thought nothing of it. Reached up to open the dumpster's lid, sorta slammed my hand down on it to grab it, and bang@! Yellow-jacket nailed me just below my right thumb. Fucker got me good, too, and I probably crushed it. That stinger drove in pretty deep. Needless to say, I wasn't happy.

Nocturnis, two things.
First, a beesting is less painful than a hornet or wasp sting, by and large. It's a hot, sharp, bright pain that settles into a throb eventually. You can help ease it by various means. My hornet sting didn't go away, pain-wise, for hours, but it wasn't debilitating.
Second, if you ever want to get stung, make absolutely sure you're not allergic.

Mine is potted plants. Fake ones
Why?
Well, when I was about 4 or 5, I loved playing with trains. I had this little train table next to this fake potted plant. I still to this day have no fucking idea what caused this, but it would shake. Constantly, back and forth. And it scared the living hell out of me. Someone had also lifted me up because I wanted to feel the top of it once, and the stem at the top actually felt like a straw, and I was afraid it was going to swallow me. I even gave it a name. It was Nick. . It would even give me nightmares.
Aaah, even thinking about it is making the hair on the back of my neck stand up. I still do fear them, but it's pretty easy to hide for me, it's not something you come across very offen.
Edit: Apparently, I can't type.

lol,   my family doesn't understand why i am scared of buzzing bugs, like i take out the trash and there would be flys or what ever, and i don't even no what it is. and i no   there just flys, or something  i no there not dangerous, but that, buzzing is just lol.     the low sounding wons wen they fly past your head, omg lol, and then wen flys  fly into your hear, lol.

for some reason, i can just see jayde in my head, walking down from his house, opening up his garbig cans to smash a insect, and then start screaming and cursing as the insect bites him, no offence or anything, but this just popped into my head

I have a problem with plants as well actually, especially big waxy leaves near my face.
Haven't found anyone else with this problem before Camlorn even in the blind community, so that's interesting.
I've mostly learned to tamp down on the sudden, visceral cringe I get when running into certain plants I don't expect, but it's like I just touched a giant insect, incredibly alien and very much alive, or if it's a dead leaf, as if I touched an unexpected animal skeleton or a big scab or something, incredibly dead.
I'm not exactly sure why this is (maybe it has to do with over active empathy?) and while I don't think I'll ever feel comfortable enough to walk barefoot in the grass or on dead leaves (since even now the thought makes my toes curl and my whole body shudder and not in a good way either) I can now detach enough to examine the types of plants that gave me the worst reactions as a kid for a time before having to step away at least...

@20
there's sighted people with the phobia, I forget the name of it.  Plants are just kind of creepy when you think about it some. But a lot of that comes from really just in general not being so great at upredictable things: my adaptation to stimuli is that there's like a 1 second window or less where it needs to be identified, otherwise anxiety.  Run your hand along a plant and you can't identify what's coming up.  People love to say o biology is very mathematical and, well, yes, but not mathematical enough that there can be a plant-model like I have a dog-model or a spoon-model or whatever.

The knock-on effect being that I can't convince myself they don't move, down at some lizard brain level.  Obviously it doesn't, we all know that, but it's a thing that makes unpredictable noises and has unpredictable textures and if you lave it alone for a week it's entirely different.  I know what a dog is going to do, or a bug, or whatever: they have constrained shapes and behaviors.  So whatever I've got running all the time, if the dog sticks its nose on me, it just goes "yay, dog, pet" in the stimulus identification window and it's all good, I know where the rest of the dog is at, etc.

@Camlorn
Sounds similar to the problem I have with insects, especially moths.  I don't know what they will do next or why, I can't predict them and I don't know what they look like, how big they are, their exact location ETC.
So it's both a fear of the unknown and the anticipation of what they may do next, like flying into me.  I think of them, and many other creatures as well, as being almost like robots with orders I'm not privy to.  I just don't get how they think.
But with dogs and cats, even though they do things I don't understand sometimes, they have enough reactions to stimuli that are similar to mine on a base level that I can sorta parse it, and it's much easier to form a two way bond of familiarity and trust with them.

@Jade
For me at least, it's that the plant is very much obviously alive, and yet I can't make any meaningful connection with it, and I think that's why I get a form of this with insects, reptiles, birds, sea creatures ETC.  A lack of control over the situation.  Sure for the briefist instant my mind probably screams at me subconsciously that it could move, but that's not the root of the fear for me.
It's also much worse when I don't expect to come in contact with it.  It sorta dominates my awareness with it's presents when I touch it without knowing, particularly big plants.  It's existence is just, too alien, like an extreme form of the uncanny valley effect.
I'm still perfectly willing to talk and learn about plants and animals, and I actually think snakes are pretty cool, but I don't think I could ever own one.