Pain will wear you right out! Having everyday tasks take five times the effort will wear you out! You are using muscles you didn't know you had to compensate. Sometimes it is just so ridiculous as to be comical; wearing pant seats out, hoisting onto bathroom fixtures.

When I was wiped out from dragging, hoisting, crutching, was when the pool became my favorite place. All that pesky gravity melted away.
It does get better but It takes time. Hang in there and forgive yourself for the things you can't do right now. Recovery comes in stages. I hit two miles today for the first time!

I am kind of in shock that I did it. That is a record. It took a year that started with a few steps, then a walk down the driveway, to the mailbox, etc. That first mile came super slow, but it came.
Keep up the good work! Because yes, under these circumstances taking a shower is work!