Yes, I had mucous-like stuff in my BMs too. I also have random days where I have no BM at all, but then I will normally make up for that they day after
I started off really constipated and now it has gone the complete opposite so I'm expecting it to take a while for things to settle down. It is a major invasive surgery after all. I'm sure they said it can take 6 months for the bowel to settle.
My open wound didn't need packing, so it might not have needed as much deep healing as yours. I think you will just have to accept that it is going to take longer for you to recover than expected but at least you have a good excuse to take it easy, relax and have other people do the hard work for you
I hope your recovery goes smoothly and even if it feels like your body is taking ages to heal, it will get there eventually. If someone had told me this at the time I wouldn't have believed them or felt any better, but it is true.