Don't drink coffee but when out have cuppacinos and notice that "some places" are okay and others make me bloated. I have head recently that some cafes add something to them to make them thicker. ANyhone know anything about this?

Cannot drink coke or fizzy drinks - I cannot burp and I will get bloated and wind pain.

Cannot tolerate some wheat products - like cakes, bisucuits and bread. I can eat vita brits (cereal) and a certain bread made by Bergen. I tried sour dough bread "the real thing" and it was okay however another time I bought sour dough from Bakers Delight (supposedly the real thing) but got naseaus and bloated.
I can eat (only once a week) cake my friend makes. She uses wholemeal organic flour, half the sugar and adds things like sultanas, or aprictos, or ppumpkin scones. It is bought stuff I cannot eat and can only think it is because of the additives. We went to a cafe yeserday and was told the cakes were all home made, yet the one I had made me naseaus...

Spicy foods and MSG