Hello i appreciate your concern i will definitely help you in best possible way In my opinion you should get certain blood tests like thyroid and liver function tests You might be having low metabolism which can be boost very easily with exercise and proper diet Please.follow these guidelines don t skip the meal have small and frequent food like 3 large meals and 3 snacks in between try to avoid smoking and alcohol avoid fatty fried and junk food or carbonated drinks have more of fruits and vegetables abdominal exercises like yoga and cardio which will boost your metabolism Hope.this helps you best wishes