What caused this memory loss?

As some of you know, I spent most of November in the hospital recovering from a collapsed lung. I don’t remember any of it, except the last day when I finally started feeling coherent again. Don’t remember going to the local hospital, don’t remember the frantic ambulance ride to Wichita, don’t remember anything. Well, when I finally came to, I told Rick that I felt like I’d lost 4 months of my life. I couldn’t remember the week before I went in…I couldn’t remember the entire month of October! Apparently, for example, I had put a big dent in our new truck, turning too sharply…and I don’t remember doing it. In fact, it finally hit me that I don’t really remember anything from July on! I was working, I was taking pictures and videos of the kids…just doing normal things. But I don’t remember.
The doctor told Rick that I had been a very sick girl for at least the last 4 months…..
I had 280 pictures and videos in my camera, which I just downloaded today. There were scenes from summer, pictures that I had taken, and I had to ask Rick where we were and what we were doing. In particular, there was a family get together and someone had erected a KU sun canopy. That got me up off my seat to talk to Rick! I hate KU! Turns out….it was OUR canopy! His daughter had given in to him. I’m looking at him with slitted eyes and he said he TOLD his daughter I was going to kill him! He said she told him we could just paint over the Jayhawks…and a glimmer of a memory came through. I had some serious plans for those damn Jayhawks….but I couldn’t remember what they were….
What happened to me, Doctor Fluther?