What could the connection be between mildly upset stomach,diarrhea ,lightheadedness, and an overall shaky feeling with tiredness as related to the gastro-intestinal area? This is an intermittant problem of mine in which my neurologist wants a GI doctor to look into.
A weak, lightheaded feeling could be from anemia. You could have a deficiency of folic acid.
Check into Candida Related Complex caused by Candid albicans infection.