Hi, Welcome to health care magic, Your terrible indigestion and loose bowels could be due to irritable bowel syndrome (IBS) or inflammatory bowel disease or parasitic infestation (giardiasis) but it needs to be evaluated further by clinical examination and relevant investigations. Dizziness could be related to water or electrolyte imbalance because of loose bowels. You should undergo certain blood investigations with urine and stool examination for R/M and ova or ultrasound of abdomen to detect the exact underlying cause. If you were my patient then I will give below instructions for some relief. 1) Take frequent small feeds rather then two large meals. 2) Pain killers should be avoided if you are taking them. 3) Avoid carbonated drinks,caffeine products. 4) The food that you are eating should be chewed well . 5) You should walk for few metres after every small meal. 6) You should not lie down or sit on the couch immediately after meal. 7) Take high fiber diet,fresh fruits which will move easily in the gut. You will require oflox-oz which is a very good antibiotic 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 family physician or gastro-physician who will 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. Regards,