OK, I've been home three days now. From the neck down, I am OK but from the neck up it's not so good. My brain feels scrambled. Sleeping patterns are off. I wake up between 2am and 3am and it's not so easy to fall back to sleep. My trick to relax my brain, even though I'm quite groggy, is to do Uttanasana (standing forward bend) at the edge of my bed resting my head on my mattress. My Iyengar Yoga teacher, Susan, had a bit of a giggle the first time I told her about my technique. Sounds kind of goofy but it works and I don't have to worry about losing my balance and falling over.