Belly Area Pain from Having a BA Via TUBA??

I had my BA 3 1/2 weeks ago and I am still having some off and on pains from my surgery in my belly area. How long should I expect this to last for? The pains seem to worsen if I lay on my side for more than 10 minutes. My breasts are healing fine and are dropping and softening nicely. I went from a 34 AA to a 34D, saline, under muscle, 480 ccs left breast, 500 ccs right breast. It seems I am having more pain from my stomach area from the TUBA than from my breasts, which is not what I expected.