Good luck during your treatment. Kathy's advice is exactly what I would say and the only other thing I have to contribute is to make sure you have something to entertain you for the times you are awake. During my treatment I slept about 15-18hrs a day but found myself to be extremely bored during the few hours I was awake. I recommend having access to TV, magazines, music & movies. The above items provided a great distraction from the treatment process / stress of being stuck in bed 24 hrs a day. You will be in my prayers and I'm hopeful the ketamine treatment will provide you the relief that you have been searching for.
Sarah