Balloons. I could never trust other kids with balloons and kept thinking they will pop. Thankfully I have seen NT children look anxious and cover their ears when a big balloon is near them, but I used to cry and scream when being around kids with balloons.
Dogs. I was always afraid of dogs because of the loud barking, and I still am now. But the difference is, when I was a child I would see any dog and cower in fear, thinking it will bark at any moment. Now I have learnt how to read the body language of a dog and so can tell if it's going to bark or not, so I don't feel afraid at all. Also I know what types of dogs generally bark and what don't, and also when. But I do get jumpy when enclosed in a room with a dog, not so much when it is laying down but when it suddenly goes alert like it has heard a noise we cannot hear, and might start barking at it.
The school bell. This made my school life hell. I hated the school bells, and I still do now, and I don't want to work in a school because of it. But I believe it was more than a sensory issue. It became a full-blown phobia. The bell didn't really hurt my ears as such, it just made me horribly jump and I just didn't like that feeling of shock. Even when I knew the bell was going to ring by keeping an eye on the time, I still would jump. I just lived in fear of the school bell, and nobody understood me. They just laughed, which made me feel embarrassed about telling anyone when I got to a teenager, so I had to just suffer in silence. I really wish I could relive school life without being afraid of the bell.
_________________
Female