That’s exactly what happened to me. Fortunately, it doesn’t last very long. In Jan 2008, I had a very complicated triple bypass. They put me in a chemically induced coma for four days. When I came out, I was starving and when I tried to eat and drink, they determined I had an Ilius issue and for 60 hours all I could have was ice chips. The body can be very tough, but occasionally, it can be very fragile. Glad your husband is back on track.