My incision was also very painful for the first 2-3 weeks. I think is was also from the swelling of the area that made it uncomfortable to sit properly. I did after the first week, lay on my unoperated side and gently massage around the incision. The first couple times, it felt like a had a bad spasm in my muscle, then the knot slowly went away. This knot was on the top end of the incision. After I did that the spasm went away and felt much much better. Also, I iced like crazy every couple hours for the first 3 weeks. Now, 5 weeks out the incision just looks like a red squiggly line and all the bumps and "pockets " as my wife called them are almost gone. I still gently massage around the incision daily and it seems to make the area not feel as tight.
Dave, hit it on the head though, I would call the surgeon if you have any concerns!
I wish you a great recovery!