I had my tubes tied and trust me it really hurts, just two weeks later I played with my kids and I ended back in the Emergency Room in tons of pain and they saw something floating around and asked me if I was ever shot with a Bebe gun, so I am horrified to think that one came undone!! so take it easy. as for the vitamins I am not sure on that, the doctor usually intsructs on that, my father in law had back surgery and had to stop taking his vitamins.
everyone is differant so what happened to me won't necessarily happen to you, my neighbor did it 5 years after a baby and was pretty sore several weeks after.