Had to be put on TPN nutritional supplement

I just recently had my 3rd hernia surgery and was dehydrated etc.  my little outlet was down to 3mm.  I was unable to eat anything.  They dialated it to 10mm and also found an ulcer.  So I am currently on the TPN and it sucks having VNA come toyour house.  I was down to 114 and no energy.  My weight I'm suppposed to be at is around125.  I'm slowly gaining weight, but sometimes I wonder if it was all worth this?  Anyone having this much trouble at this stage?