As with most everyone else, most mouth sounds are #1 with me. Slurping, smacking, crunching, swallowing, tooth sucking, throat clearing, gum popping/cracking, dry coughs. Also engine idling and crinkling wrappers.
My latest thing is certain voices – especially those exhibiting “vocal fry”, nasally, whiney qualities.
I’ve also noticed lately that I can’t stand certain visuals like people chewing their fingernails in my peripheral view. Although weirdly, it soothes me to see someone rubbing their hair or picking at/filing their fingernails. Even if I turn my back on someone chewing his nails, I keep thinking “is he still doing it?” I just can’t let it go until it stops even though I can’t see it.
I also have a strange quirk about the feeling of certain textures against my skin. For instance, if my right hand touches something bumpy, my left hand will have to touch it to kind of “balance it out”. If my left foot gets wet, I’ll have to make sure my right foot gets wet.
So many quirky things. No wonder I’m always tired, LOL!