Get the call last night saying my brother in law, Jon, was bent over on the bathroom floor in shear agony. Rushed to the hospital, docs said Heart attack. He is 54 with no prior history. Apparently he was feeling crappy all week then this. No open heart surgery, no stent, just found fluid around his heart and a valve had torn. Doc said never has he ever seen anyone survive this!
www.livescience.com/coronavirus. Do a search for Ruptured Heart. This might be due to the virus. He had no temperature but shortness of breath. In the article it explains how the body tries to fight off the virus and goes in to a brief explanation.
He is stable now and following commands. Certainly they will test him for Covid so let's see what the docs say later today.