After getting my tubes tied, I discovered a hard lump to the right of my navel that could not be accounted for. My first thought was that they left something inside of me from the surgery. My mother, being an RN, started rattling off what it could be, and I didn't start to freak until she said "It could be a hernia ... "
"WHAT? You mean my guts are hanging through my muscle walls???"
After about six weeks of phone tag with the doctors and an MRI (oh, and the techs could not stick a needle in my veins if my life depended on it), it was finally discovered to be an encapsulated infection that was in the process of dissipating by that point.
My body had been fighting an infection all that time, but I didn't display any signs of an infection.
(These were also the same morons who told me I had only one incision, but I found two incisions like my type of tubal was supposed to have. They also didn't bother to give any aftercare instructions. Thank God my mother is an RN and had taken care of post-sterilization patients.)