I have total correction of tetralogy of phallot and paraovarian cyst. I becoming fatty to fattest although not taking much food. What I do now?

See your doctor. You should be evaluated by your physician. Thyroid problems can cause the kinds of symptoms you are having but sometimes it's because you are eating more calories than your body needs. I would suggest logging everything you eat for a week and take it to your doctor's visit. The daily plate is a good calorie tracker website http://www.Livestrong.Com/thedailyplate/.