Well, at least you were offered a reconstructed navel. Nice of them to do so.
When I had my Ileostomy (30 years ago), complications meant that I had four operations in five days. When I eventually defied the medics and did not die, and finally got moved out if ITU, I discovered that the result was long, long, scar running down my middle from just below my breasts right down between my legs and my anus had also been all sewn up. My two eldest (teenage) daughters who had spent much of the time at the hospital with me during all of this called them my Teddy Bear stitches!!!
About 14 years back one of my daughters was staying with me for a weekend, with their newest baby. (My stairs were straight, but the banister rail only came up two thirds of the stairs.
After we all went to bed, I remembered something I needed to do downstairs, trying to go very quietly - although the light was still on their bedroom - slipped on second stair down, managed to sit backwards, and bumped down the entire flight on my bum. Daughter and SiL rushed down to help me and to tell me off.
Amazingly, except for some bruising and a lot of shock I was okay. However, a few weeks later - ring at my front door and there was someone from Adult services, saying they had been notified that I needed some aids. My daughter, on her return home, had notified them. I was mortified at first, but they came and put in a rail up the other side to the banister and this ran the entire length of the stairs. As time went on, this rail was just about the only think that meant I could continue to use those stairs, giving me something to pull myself up by and something to hang on to when going downstairs.
Hope you recover reasonably quickly.