Did you get back on the LDN regularly? I find that that darn stuff helps me to heal faster. That and I'm eating well. There is a lot to say for the proper nutrition.
My accident threw me into an exacerbation of MS and that's how I was DXed by the Neuro at the hospital. I imagine that is what you are suffering as well. The shock of surgery effected your MS and fatigue is a big part of that.
The rest you are getting is important and so is good nutrition. Keep getting up and moving around between naps and eat well.
We had our incidents about the same time and I am healing faster than you, I think due to PT, good hospital and home nutrition and LDN....and the fact that I didn't have a UTI.

. That alone can cause terrible fatigue.
Take your time to heal all, let your Sons fuss over you, but keep on keeping on..

