If it's not the chewing. It could be candida. I used to feel awful after certain foods -- anything that my system had to work at breaking down -- sheapard's pie really got to me a while back.

If you're experience affects after eating surely it'd relate to bowl health? I certainly felt better when I went on a fruit and meat diet (this was when i had my fillings in). The purpose of that diet was to remove carbohydrates from the diet and all processed food -- a similar diet, minus the fruit, is recommeded for candida. As far as sorting out your gut and possibly killing the candida -- if that is the problem -- i've found probiotics (acidophilus --i use tablets but most yogurts use them thesedays) and garlic (tablet form) helps a lot. Garlic is a powerful anti-fungal agent, and good for many other things.

That's the only thing I can think of.