The past 22 days I've been in bed, giving my ankles and knees time to heal from periarthritis. 22 days ago my ankles were swollen heavily, making it impossible to stand or walk for more than a couple of seconds.
The cause is sarcoidosis. Everything should heal, providing I take my daily dose of ibuprofen and providing I let all the joints rest (wrists and elbows are also affected).
One more week in bed, and then I hope to be walking again.