Talk to Gastroenterologist on Indigestionof Food Especially Meat

since last few months i have been victim of stomach problem. i can not digest food properly especially Meat including chicken, Mutton, beef etc. after eating these foods i feel alot of burden on my stomach and expel them out as vomiting within 3-4 hours of eating in the form of undigested food.. kindly suggest me any treatment or any recommendations.. thks