Hi welcome to health care magic... According to history you are having simple functional bowel problem most likely. .. For gas you can take diegene syrup for few days.... This syrup also contain simethicone that will help in gas problem also.... Drink lots of fluid... Fruits more... Fried and fatty foods in excess avoided.... Avoid taking stress and smoking, eat slowly. If still no benefit than for further work up USG abdomen done to rule out any organic cause if present.... Take care Advise : physician consultation for examination...