@kjoed53 I agree, our daughter had a cardiac arrest and now is in a care facility with permanent brain damage. We are in our 80s and this has been devastating. When I first went to see my rheumy the first thing he asked me was whether I'd been experiencing any stressful events prior to the onset. So the experts must be thinking about this as well. He did admit also that thus far no one has figured out where the PMR comes from.