Hi, Welcome to health care magic, Your indigestion and gas formation could be due to acute gastritis or irritable bowel syndrome (IBS) as you have also diarrhea,vomiting and headache off and on. You may go for routine blood check up with urine and stool examination for R/M and ova or ultrasound of abdomen (if required). Here, I will give below instructions for some relief. 1) You should take frequent small feeds rather then two large meals. 2) Pain killers should be avoided if you are taking them,also considering your pregnancy. 3) Avoid carbonated drinks,caffeine products. 4) The food that you are eating should be chewed well . 5) Take high fiber diet,fresh fruits which will move easily in the gut. 6) Avoid excess oil,ghee and fatty or junk foods. You can be given oflox-oz which is a very good drug specially in the treatment of gastro-intestinal infection but you should also take proton pump inhibitors like pantoprazole or rabeprazole which will reduce the excess acid production in stomach. In spite of all these measures, if your problem persists then you should consult your treating gynecologist first who may know all the relevant tests that I have mentioned to rule out any disease in the abdomen and can prescribe you appropriate medicines. Hope this detailed answer will help you. Wish you good health, Regards,