Feeling weak,nassaus, upper stomach pain in morning when i wake up and burning. burping a lot and passing lot of gas. being goiong and off for over a week. stool is tan colored. just had good yearly blood work and good colonoscopy. have ge dr appt?

I favor having a gastroscopy to investigate those symptoms if they persist and I'm happy that you're going to see a gastroenterologist. You could have inflammation of the stomach lining(gastritis), gastric or peptic ulcer or pancreatic pathology. In the meantime avoid alcohol,caffeine, aspirin,ibuprofen type meds,spicy&greasy foods and take famotidine&simethicone until you see the specialist.