Pain after D & C

I had a D&C this past friday for a missed miscarriage. The sac was measuring 8 1/2 weeks and the embryo was measuring 7 1/2 weeks and no heartbeat. Well, anyway, I have been having pain in the abdomen that really doesn't feel like cramping. It almost feels like real bad gas pains. (like after an abdominal surgery) They are from the mid-abdomen down to the pelvic area. It's tender to the touch, especially when the kids want to sit on my lap. Has anyone ever had this happen to them after a D&C? I've been alternating motrin 800mg and vicodin. It takes the edge off, but doesn't relieve it 100%. The doctor is aware and I need to let him know if anything changes. I'm hoping it gets better soon!!