Experiencing occasional side pains 3 weeks after umbilical hernia repair, should I be worried?

Hello,
Since pain is usually the body's language to tell us something is "wrong," if can feel quite disconcerting. In the case of post-surgical pain, occasional discomfort is to be expected.
If the pain is so severe that it interferes with normal activities, is worsening, or is associated with fever and discharge near the wound, you should be examined by a physician. For most patients, the spontaneous aches and pains after surgery resolve within 6-8 weeks.