I've read a few things about hyperacussion being caused by an emotional response such as fear of sounds and stress etc etc. in my case I feel there's no involvement whatsoever. I have left sided tinnitus only and left sided hyperacussion. The hyperacussion is not always there as it seems to be for others. It may be there for a few hours or for a day in the space of one month. While I have it, loud noises make me cringe and make me very irritated. But if this was caused by an emotion such as fear then would you not have this problem in both ears! I have resorted to cotton wool in my left ear to dampen the sounds otherwise I get very grumpy! But it seems to me there is a physical organic problem within the ear or nerves connecting the brain causing the problem and obviously an emotional response to that problem rather than the other way around.