Reminds me when I had a psychotic attack, and everything in my dream felt SO REAL, it replaced my memory. I woke up thinking I went to a war, where I saw some REAL disturbing crap, and all kinds of warped stuff. Like me being a molested child, Canada turned into a dictatorship, etc..

Anyways, the experience was so horrifying, I had a stroke, and forgot how to eat. I was still going to College, etc.. and I was so scared of where I was, who I was, etc... I slowly started to recognize people, and had an idea of that this was still home. It was so bad, I had extreme anxiety, and dry heaves from having to be pushed back to college with my memory temporarily wiped... The whole experience made me feel extremely vulnerable, and if something happened to me (like if a random kidnapping happened to me) I'd likely go AWOL... maybe PTSD, etc..

Part of my experience was related to college anxiety, but for you it sounds like you're going through a rough sick spell.