I've never had a problem and my surgery was April 11th. I did a lot of research and followed my surgeons instructions. The first fee days are hard to get all the fluids in but I walked around with a Water bottle for the first week to remind me to keep sipping.
Since surgery I have lost 46 lbs. the first few days after surgery I was uncomfortable mainly from the incision because I had an open procedure. I went back to work after 2 weeks to the day. I've never had a problem to this day but I spent a year doing my research and followed my doctors orders to the T. It has been the best decision I've ever made.