What is your knowledge on “Fascia”?
https://www.youtube.com/watch?v=DzSU2FiFKTM.
Next time your feet hurt, roll your foot over a tennis ball, as your foot adjusts apply more pressure until your foot feels loose, repeat for the other foot.
Use a massage stick and roll over your calf muscles daily, then when you feel well enough, try foam rolling your hamstrings and quads.
https://www.drbodygadget.com/self-massage/.

I know the feeling. Like you’re walking carrying weights on your legs and possibly might fall. And putting pressure on your feet hurts so much, feet feel warm/burn.

My muscles lock up at night in my legs and feet...very painful.!

Yeah I also have RA and it's hard to differentiate what pain is for which one. So frustrating because my dr doesn't listen or explain much.

If you have pets Don't do Eucalyptus