Bloating of the stomach (or rather, bloating of the abdomen) can be due to a variety of reasons, and it will be better for you to consult your doctor about this problem, especially if it occurs very often. Identifying the cause of chronic stomach bloating can be quite difficult even with professional medical help, and on your own, it is quite unlikely that you will be able to solve the problem.
As mentioned, the problem is probably abdominal bloating, rather than stomach bloating. The cause of such bloating is often not in the stomach but in some other internal organs, most commonly the small intestine. Very often, what causes this bloating is intolerance to a particular food. Dairy intolerance is the most common, but you could also suffer from intolerance to wheat, intolerance to yeast, and intolerance to sugar of fructose. You should therefore keep a close watch on what you eat, and see whether any of these substances trigger a bout of bloating. Unfortunately, even if you rule out sensitivity to these substances, there are still a vast number of allergies that you could be suffering from, which could be causing the bloating. Common allergies include allergies to milk, nuts, and fish, but there are hundreds of less common allergies too, and identifying them can be very difficult. If you do manage to identify the substances you are sensitive to or allergic to, you will need to completely avoid them. This should entirely put a stop to the bloating, and solve the problem once and for all.
On the other hand, it is possible that you are suffering from a condition known as irritable bowel syndrome or IBS. If this is the case, in addition to the bloating you will also experience diarrhea, gas, and abdominal pain. This too may be the result of sensitivity to certain foods, but it could also be caused by certain medications or simply by excessive stress. It could also be due to excessive consumption of caffeine or alcohol, or simply due to consumption of excessively large meals.
You may also be consuming too much salt or not drinking enough water, so try cutting down salt a bit and drinking a bit more water through the day. The abdominal bloating could also be due to some sort of infection, either a yeast infection or a bacterial infection. This of course would require a doctor for a proper diagnosis and treatment.
answered by G M