Walking... bad. Standing up... difficult. A bunch of other systems, details of which you really don't want, lackluster at best. A lot of this is the M.S.
Thinking, creativity... missing. This bit is an acupuncture condition (entry/exit block) which is compounding the M.S. lack-of-functionality. But it makes "I don't have enough energy to do anything even remotely physical, but I can sit here and do creative stuff" impossible. Anything that requires thinking—doesn't get done so well, in the blocked state. Add to that the M.S.'s fatigue/physical challenges...
Well, the easiest way to describe this is, "It sucks." "It," of course, being shorthand for "pretty much everything."
And, of course, that's just tonight. Tomorrow will be different. And the same.
Oh well. As Super Chicken always told his sidekick, "You knew the job was dangerous when you took it."