Tony, I love the idea of a sleeping bag.. Given you had trouble eating and your recovery is strong.. i am betting a simple lack of food / blood sugar did you in.. yes i have been there and yes it is a bitch.. One thing for sure Tony, you set a powerful example to all of us.. and most certainly you have my deepest respect as a person and an ultra runner.. keep running those trcasl..aiuse you never know when you will run into a skunk.. frank