Shizam A million sympathies, re. need for warmth for feet, need to reach feet, and impossibility of getting a Doctor. I just don't go to them now either and sometimes I'm in excruciating pain.
Last Winter, living alone, I hatched up a warm boot idea I could step into. I filled the boot with an extra warm fluffy insole. At one point I lined the boots with the stuff you but behind radiators, with the aluminium foil on. I used same to stand on at the sink and to put under my feet where I sit. As I said I live alone so my eccentricities are all my own. Well, and the dogs'.
Now, this hip; I may be wrong so please get some good help like a Chiropractor if you can, but, I wonder if it's like when I started trying to do the right thing for my very dodgy back. I followed the "Back Bible" book by a Physiotherapist and even had her hand-bag sized copy. I felt I had to be responsible and do my bit. A week after I started, very slowly as advised, I was taken into hospital with the worst sciatic nerve pain ever had. Screaming if I as much as blinked.
My message is, could your very sensible and laudable exercises be causing the pain?
Sending you lots of love and do keep your hips warm as well as your feet. I also wrap my feet in anything available, scarves, blankets, bags with warm things in like those microwave heated seed-filled things.... ??