Hi. Thanks for your query. Noted your history of swollen abdomen, pain hurting more on when visiting bathroom for wee or passing bowel movements. I would advise you the following: Get a clinical examination done by a General Surgeon. Ultrasonography of the abdomen. Tests of blood, urine and stool so that the diagnosis is made. If the cause is surgical you need to be operated, and if no such a case, a course of an antibiotic,metronidazole and probiotics along with symptomatic treatment for pain and so will cure your problems.