<< Sometimes, after eating certain foods I get a
 strange head tingle and my stomach feels bloaty.>>
Don't eat those foods.

<<<. I had a raw carrot the other night and my thigh immediately
 started to ache. Something strange is going on.>>>

I'd stay away from root vegetables.

 <<But, how much fruit do we think is OK? >>

You have to find the amount that works for you.  That may change over
time.