EXTREME menstrual pain!!?

I have extremely bad period pain. It doesn't feel like the normal cramps at all. The pain is in my entire abdomen, not just the lower part. I had a c-section 14 months ago and since then I have had normal menstrual cramps but this time they are so extreme that I can barely walk and can't pick my son up at all. I want to know if this is normal? Is it scar tissue? Does anyone experience this? And should I see a doctor. I am taking pain meds specifically for period pain, but it doesn't help. any ideas? Pleeeaaaasssee help. I aam worried and in pain.