I started with pain on my right lower side around naval level.of course first thought appendicitis. It moved briefly to left side but still centered on right side and now across the middle. I had DIEP Flap surgery done in 2015 and the pain seem to be right above the incision. It hurts when I press on the area, but I don t feel any bumps, thinking of a hernia. It hurts more when I get up from sitting or walk a lot..it has been about 3 days, not severe pain but enough to be uncomfortable. I am 62 years old.