What is the sharp pain like? Where is it? Do you feel it anywhere else? It still could be a hernia - unfortunately hernias can return even in places where you've had surgery before. Have you had any other medical problems? How tall are you and how much do you weigh? Do you have any back pain? Does the pain come only when you bend? Have you had this evaluated by your doctor since?
How long have you been having the pain? Have you been having bowel movements regularly? Passing gas? Are you able to eat? Any nausea/vomiting? Have you tried taking anything for the pain?
Has a doctor examined you since the pain started? It's always possible that an increase in weight or pressure in your abdomen could force the hernia through the same surgical site that was corrected, even years later. But if it persists, it should be evaluated by your doctor.
About 35 yrs. I have regular bowel movements. I'm able to eat .No nausea/vomiting. As I said before, only aspirin. Yes, and they found no indication of a Hernia. One doctor stated that it could very well be "scar tissue".