Protruding Xiphoid Process After Tummy Tuck

I am currently 27 yrs. old and in 2007 I weighed 325. After 1.5 yrs. I lost 145 lbs. I decided to have a full abdominplasty w/ abdominal plication on 12/27/11. I'm extremely happy w/ the results except I've noticed a baseball sized protrusion in the center of my chest. It doesn't hurt and feels visceral, not seroma like. It seems to me the PS over-Plicated and now my xiphoid process protrudes. I understand significant swelling 2.5 wks Post-Op but will this subside? If not, can it be fixed?