Can you tell me why i burp and fart so much, i am naturally thin but would still eat a quiet a large amount of food i dont eat unhealthy food except the odd take away one or twice a week, i take it i have a high metabiolism. for the last 3-4 years my burping and farting have becom excessive. all of my family and friends comment on how much i do it. if have to hold it in for more than a few hours i have terrible stomach cramps, can you plase tell me what the problem is?