@kekso,
Quote: I went to the doctor about 4-5 times to check on the epididimytis and he said that everything is fine.
Did you specifically discuss the details of all your symptoms with your doctor during the follow up appointments? If not, do so. They aren't mind readers. If you have, what did he say other than the comment about epididimytis?
If you need to, go to a different doctor for a second opinion. Get checked out for bowel obstructions, hernias, appendicitis, pulled muscles, etc.
Bottom line, if you don't feel right, have thoroughly communicated symptoms but are unsatisfied with the current doctor's treatment, get a second opinion. It is your body and your health, keep advocating for answers.