Hello! Thank you for the query. The most common reason of such symptoms is lack of good intestinal bacteria and presence of bad bacteria in the intestines. Gas in our intestines comes from the foods and from the bacteria which produce it. Good intestinal bacteria protect us against bad bacteria. When there is no good bacteria, bad bacteria can appear and cause some kind of infection. You may notice some stool patter change with this bloating. Such infection can appear especially after antibiotics treatment. I suggest you to improve your diet (avoid fatty foods) and start probiotic intake. This should help in a week or so. If not, please consult gastrologist. Hope this will help. Regards.