Wow, sound's a big one. I wonder why so many people are sensitive to sound?
For me it's car/ bus breaks and acceleration, plates scraping, chairs scraping on the ground, whistling, saws, coffee grinders, microwave and oven alarms, the fire alarm at the school and at home, people shouting, screaming, children crying, sudden noises, whistles (in sports and stuff), some higher notes when people sing or when someone's playing the violin and hits a higher note, sometimes the TV buzz irritates me, some low-pitch noises don't really hurt but they sort of confuse me and make me panicky, ummm...sometimes dog barking, or people speaking close to me, shoes squeaking on the floor, birds (blasted birds!). Basically high pitch stuff.