If you feel unwell after eating, you should not try out your DIY skills on your digestive system. The right call is to consult a competent medical expert to prescribe digestive relief medicine. Now, you do not have to get worried if you have heartburn, indigestion or flatulence. These things happen and there are logical reasons for these inconvenient conditions. Maybe the food was too spicy, you ate in a hurry or your body system did not like the food you just ate.
Other culprits might include eating very late at night, going to bed immediately after eating or not drinking enough water after your meals. The point here is that medicine is an exact science and speculation will not do you any good. Consult a competent and experienced medical doctor if your digestive system is not working effectively. This is the right call and this smart move will give you a permanent solution.