I underwent the diet with a dietician about two years ago - I'm now 38 - and finally uncovered what had been basically destroying my life for about a year before that - severe intolerance to amines, salicylates, glutamates, colours and preservatives. My symptoms are generally: extreme irritability; extreme sinusitis-like symptoms, including ear aches and imbalance, near-permanent blocked or runny nose, and general flu-like symptoms (body ache, chills etc; extreme tiredness; and skin problems). I use "extreme" in all of the above because I'm so used to people saying "That doesn't sound too bad".  - Diego, by email