Imo hypersensitivity is probably due to acetylaldehyde toxicity. Typically this is when you feel like you have a hangover but haven't drank. This is from candida. There are supplements to take to help break down acetylaldehyde.

http://intelegen.com/nutrients/prevent_the_damaging_effects_of_.htm

Taking 500 mcg or 1 mg a day of molybdenum will be very helpful.

http://candidapage.com/aldehyde.shtml