My father had the same problem about ten years ago. He had the surgery and hasn't had any problems since them. He was very, very, very skinny (unhealthy so) before the surgery and then finally managed to gain some weight, but not much (no need to fear that, if you are?). And all his digestive problems went away, too.

I don't know what symptoms you have. In his case it turned out well. Recuperation time was also relative fast.