I have sharp pain in my left side under my rib cage. i had mesh repair hernia surgery in february 2015. could this pain be related?

PO pain hernia: It's possible if the mesh was fixated near this area. Since there is no information about type of hernia repair, it's difficult to say. I recommend returning to your surgeon who knows all the specifics about your surgery to answer this question.

Probably not: assuming it was inguinal hernia repair. You should see your doctor to determine exact cause of your pain.