Your history is unclear so I can't give you a specific diagnosis but I would advise you to visit a general surgeon to assess and rule out any underlying cause. You may require Sitz bath and a painkiller which could give you some relief. These steps may help: - Do not strain during bowel movements - Reduce weight and achieve a healthy weight as per your BMI - Eat food rich in fiber and bran based cereals. - Sitting on a donut ring cushions can reduce the pain while sitting. Kindly visit a general surgeon