I woke to my husband making a rattling sound-struggling for air. His lips turning purple,stiff body-clenching his fists up by his head. Completely unconscious. I did CPR and he came to after 3-5minutes- having no recollection. He has asthma so I googled- it just seems his symptoms were much more severe- almost like he could have died if I hadn’t heard him when I did. What does it sound like he may have or had? What was that?!?