Indigestion. Else that can be done?

In july: I was facing acidity, gas,bloating,belching and disintegrating stool and abdomenal heat on a daily basis. This started immidiatly after a goa trip. I was prescribed an antibiotic course but it did not help much. In august: I started a naturopatic treatment and diet control. It did control my acidity and stool formation but not much. At least 2 times a week i feel bloated in the lower part of my abdomen with slight pain on pressing. I at times have a feeling of incomplete bowl movement with narrow and ill formed stool. I am only having home cooked flood with no milk products, no spicy food and no oily food. During my cycle, all these symptoms aggrevate along with random bouts of abdomenal heat which i feel around my navel. My stool reports are clear and blood work is fine as well. I have lost 3kgs in 2 months and currenly weigh 50.5kg(152cm) How long will this problem take to cure. Is there anything else that can be done?