Hi bboon44. Very interested in your account regarding the Covid . I have never caught covid at all however I was talked into having the awful vaccination and immediately after the second and last jab in 2021 my SI joint pain started up and my bone density began to drop . I had a fall down stairs and hit a hard floor beginning of 2020 just as Covid began and before jab . I never fractured or broke a single bone !! Now I have severe SI joint pain and osteoporosis!! Life changing . I also have benign lytic lesions in my neck. Otherwise I am very healthy ! I am the one who is scared to take the drugs for osteoporosis as I react badly to meds as I am very slim and only weigh 48kgs ( 106 lbs) . I will be starting HRT today plus testosterone small amount . I hope I can tolerate it as it may be my only hope !! It’s very interesting having feedback from these people on the Mayo site . I live in England. Keep it up .