I could be you. 2001 in HDU for three weeks with covid. Fit as a fiddle before this but the took six months to learn to walk anything like normal. Thought it was just after effects of the covid but every joint at differing times knocked me for six. Ive been diagnosed with arthritis, osteoarthritis, the Celtic curse, gout, all to be changed later. I was then sent for a rheumatoid arthritis test but told it wasn't that it is osteoarthritis and fibromyalgia with long covid. I need knee replacement and a right shoulder replacement as they cartilage as almost gone. Getting old wasn't the fun I thought it would be 🤣