Are inconvenient, some times dangerous[Nut allergy] But once sorted are manageable if disappointing. My particular problem is food tolerance. I eat anything and everything when I know I should not- type 2 diabetic and moderate overweight to boot.
But then being well into my eighth decade I may as well out out having fun as being a skinny, but healthy and miserable - centenarian.
laurie53 when i read your thread i looked down at my cadbury flake and thought what a shame and i now feel guilty eatin it, but if its any consolation i cant eat anything with chilli in it or peppers or else i would be up all night with heartburn,i dont feel so guilty now :}
Strange things, these intolerances. I used to think it was all in the mind but I've a different view now. My father recently became lactose intolerant - which manifests itself by him having to be in very close proximity to a toilet for about 12 hours after consumption of the offending item in milk, yoghurt, cream, soft cheese. The odd thing is that he can take hard cheese like cheddar with impunity.
He has a particular liking for Stilton cheese and the very odd thing now is that he can take that cheese from some producers but not others.
You can get some pills in Holland and Barret that help with Lactose intolerance. My friends wife has the problem and taking one of the pills before partaking of anything that may cause a problem helps considerably.
I can't get hold of the name of them right now but talk to the people in the shop.