Allergy or just hard to digest?

[hot_rican_4_ju]

I could not eat certain things since I was about 5 yrs old, these include anything in the melon family, cucumbers, bananas, and avocados. when I would eat it I would get a sharp intense pain in my chest. The Doc told my mother that it was an allergy. I also cant eat raw carrots, brocolli, and cauliflowr, however, if it is cooked then I am able to eat it without pain. This is crazy,I would love to eat salads all the time, but I cant cook the leaves,lol. Does anyone else have this problem? if so,, what did u do? I also cant it any type of nuts except peanuts!! I would love to eat all that healthy stuff, but it hurts, what the heck is going on here?