I feel your pain and know where you are coming from. three yrs ago I would cycle 20 miles or more, more than one day a week, walk 5 or more miles when walking the dog, hill climbing, gorge walking, you name it.
Then my asthma flared up, and I struggle some days to walk to my downstairs bathroom about 12 feet away from my chair in the living room.
Lost my job, lost my independence and spiralled last year into depression. Now I have mentally accepted this is maybe as good as it gets I feel less angry now with myself for having this illness and losing my job.
Sounds like your husband is taking it out on you for being ill. Agree with others a conversation might help, but that can be easier said than done if he wont listen.
I think you need to find a way to help your own mental health before he degrades you that much that you believe all the horrible things he is saying and doing.
I found a local club and go and do a calming craft session once a week, park the car 20 ft from the door and off I go, really makes a difference getting out and talking to people that aren't putting you down.
If he has a problem with doing everything can you hire a cleaner once a week to give the house a going over? Or a gardener? Things like buying pre-chopped veg so you can throw a meal in the slow cooker every morning easily so you are not standing at the cooker but you are still eating well. Always feel foot pain is the worst because you have o use your feet, if you have a sore arm you can use the other one.
Would you and/or he consider a wheelchair? either a manual one he can push you in or a wee battery-operated one you can go for a walk with him in?
Could he join a local walking group so he has people to go out with?