Remedy for bloating, belching, diarrhea, stomach cramps 

The symptoms you have described indicate that you are suffering from IBS or irritable bowel syndrome. It is basically a common intestinal disorder, which if treated properly has no long term effects. Generally just living a healthy life and avoiding highly stressful situations helps prevent IBS. Often, hypochondriacs suffer from this syndrome, wherein the symptoms persist regardless of treatment. Corrective measures to your diet are the most effective way to treat this disorder. You can start by eliminating foodstuffs that you think are possibly causing your symptoms. A lot of patients suffering from IBS find that the consumption of alcohol, caffeine, nicotine, dairy products, and foods containing excessive fats tends to aggravate their symptoms. There may be some foods that your stomach simply cannot handle, and hence eliminating these foods through a trial and error diet could help control the disorder.

You can also try out remedies like peppermint and drinking a broth of rice (which can be prepared by boiling one cup of rice with two cups of water until the solution turns milky). This can remedy your bloating and diarrhea respectively. Also, eating foods high in fiber goes a long way in improving bowel movement. Finally, avoiding the over consumption of junk, unhygienic and spicy foods helps in maintaining your overall health and preventing future relapses of IBS.