I can totally understand. I have fibromyalgia and severe degenerating disks in my spine. Plus, I am a worrywart and control freak. I am no longer able to work outside of my home. People (like your husband) have to realize that you have just so much energy. You cannot do one thing right after another...even if they are FUN things. You cannot physically do it. Could your doctor explain it to him? Or, get a 'note' from the doctor stating that you must take time off for yourself or something lile that. Go somewhere for a weekend by yourself and leave him with the chores!
Then, to make matters worse, besides feeling bad physically, you feel guilty because you cannot keep up with him. Hang in there. ((HUG))