I have the best husband in the world but I just feel like I am ruining his life with my problems. He deserves someone with life and enthusiasm. I am dragging him down.. Ask him! Tell him that you are worried = that you feel that you are 'dragging him down'. You may well be surprised! DH adopted the attitude : It is What it Is : which is DC's tag line ;-)
His words or your depression/guilt talking? It's The Change - does what it says on the tin. I found that writing a list each evening enabled me to tick off what I had done - anything left over went onto the next list. What I could see what that life was static for weeks, then suddenly I was doing more as my ADs kicked in.
MIND charity were helpful when I needed support in 2016, my GP and husband have been great. Half a day at a time, don't look too far forwards. Let your body heal. This too will pass.