Maite O.
While I wouldn’t consider myself completely qualified to answer, I do have a suggestion that comes from my own experience. I don’t exactly know what you’ve been through, of what you have, but I have several joint issues, mainly in my ligaments and tendons, not Sep much the muscles and bones, but what I’ve found useful for joint pain/mobility limitations (and I would guess it’s a better option for people who are overweight, for to the added stress in their joints) is swimming. Not necessarily well, but because of the difference in density, there won’t be much strain anywhere. The main problem would be access to a pool/beach/etc, and the fact that it’s time consuming and usually requires planning in advance. If money and time aren’t aren’t an issue, I would really recommend swimming!!