I'm also afraid of dogs. There are a bunch of ferals where I live and I've been chased a lot when I was a kid, plus all the thugs walking around with pitbulls and stuff. I don't see how they can be "man's best friend" they're aggressive pack animals that bark and have pointy teeth :( I'm getting better at managing my fear and I'm mostly OK with chill ones just laying around or something, but I still freak out at barking/nipping/chasing/territorial dogs, especially at night and/or in groups.
I can handle most creepy-crawlies: I'm cool with spiders, I find snails and caterpillars cute, bees are OK etc. It's only cockroaches and millipedes that scare me, fuck those. Another childhood trauma, our home was infested until I was like 8-9.
I don't have a fear of needles or blood (I even donate blood regularly), but I can't really look at gore/traumatic injuries/other people getting hurt.