Krank,
Yep, this old thang called rsd, does spread around.
Nothing strange about it, until you start to try to figure it out.

Your knee moves more than Hip.
I'd think a stationary bicycle would do you well!
(It did for me, until Wifey took it)... Hah!

Gotto keep moving any joint that starts to feel painful, and move them ALL somewhat,
BEFORE they start to feel any pain!

Isn't this the standard complaint here?
Ooops, my this joint hurts, now it's going to this one. Because you're'n has skipped your knee, what do you think will happen, if you fail to keep motion going?
(Use Omega 3 fish oils too!) Yes, good guess, Your entire Leg will go immobile!

So, KEEP THE ENTIRE LEG MOVING, along with the other, and your arms, etc.!

USE IT OR LOSE IT!

I just don't know how many times I can say that!
It cost my insurance company so many hundreds of thousands, back when RSD was Unknown, to teach me that, (amongst other things), that, it should be just a "Known" fact! at this point!

I hope this works well for you, Krank!

Pick up the ball, and run with it!

All my best wishes and prayers!

Pete
asb