Ask him if he's ever had a severe cold or the flu and felt like he couldn't get out of bed for a few days or a week. Then remind him you've felt like that for 7 years.....and HAVE gotten out of bed.

The struggles over household chores are something that every couple living together has to work out. Chronic illness adds to that....usually meaning the 'healthy' partner needs to do even more than what typically be their "fair share" It sounds like you are asking him for help with 'your' chores. How did all of this get 'assigned ' to you ? He needs to understand that HE has chores.....and that if you have a bad day then he also needs to help with your share of the chores. Too tired from the day and no help with chores equals too tired for night time activities. If that doesn't sink in, he's beyond help.