I had a bilateral mastectomy and diep flap reconstruction 2 months ago. My ps says the fist sized bulge is not a hernia, that it is due to weak or lax muscle. He said I could leave it like it is or have more surgery where he would repair it with mesh. It bothers me at night after a busy day. Sometimes it seems bigger then. What are the chances of it getting worse in the future if I do nothing now? Also, how likely is surgery to repair the buldge?