I get bad cramping in my tummy, light headed, supper fatigued, sweating, diarrhea, itchy red hands and feet. Sometimes the red itchy is all over.

See a doctor. This can be as simple as giardiasis or quite difficult to diagnose. Not all of your symptoms may be related to a single cause, although that is generally the case. Go see either a gastroenterologist or an infectious diseases physician and be evaluated. Hope you ae better soon.