About a week back I suddenly developed body ache and also started feeling a little cold through out the day. There was no fever though. Neither any cough, nor cold. The body ache is all over, but specifically in the legs and palms. Knees crackle. Vitamin b12 and D3, checked a month back should sufficient levels. I had started on a new supplement - magnesium glycinate a few days before the onset of this episode, which I stopped immediately, once this started. My oxymeter readings are 96+ consistently.