I have the same problem too. I think the tomato sauce and wheats in breads have really nasty gluttens, so I seldom eat out in Italian restaurants, although I used to love to. I even have problems eating virtually all kinds of bread, which I have no idea why (I didn't have any problems in the past, but after quitting them awhile, those sleepy/headache/...symptoms all come along. Is it due to tolerance developed by my system?). Anyways, I think the most natural and unprocessed foods are the best for our systems. By the way, I'm a type-B. Good luck and have fun with your diet.