Hi I would say the main symptom is unable to concentrate, sometimes accompanied with a headache, then hard to hear and speak. This is normally happens when there is lots of noise around me but can happen without noise.
I've been doing alot of research and I stumbled across magnesium deficiency which can give you inner ear trouble as well as noise sensitivity, the other symptions associated were what I have also. Other conditions I found don't identify my problem as well as magnesium deficiency. I do not eat alot of vegetables so it could be in fact that, so now I'm try to eat a magnesium rich diet as well as taking magnesium supplement pills, I hope it helps!