A little worried

Well Last Monday night John was coming home from work, 15 after 11pm is the time he is normally home by. At 25 after he still wasn't home, I didn't think much of it, thought maybe he got hung up or was talking to the other custodians or something. Well 11:30 the phone rings.
It is the police........He tells me John got sick on the way home and and pulled over to get some air and to compose himself, he was having trouble breathing. He passed out and a passerby flagged down the police. Who called 911 and got the EMT's out there to look at him. Well they took him to the hospital and ran all sorts of tests. His blood pressure was to high, his white blood count was high and he had an irregular EKG.
He went to see his doctor the next day and she sent him for a cat scan, which turned out fine, but says something isn't right so they did lots of blood tests which we are waiting to hear about. So we have been sitting here this last week wondering what the heck is going on with John and his health.