Welcome,
I identify with the eating machine and no sleep. Seems like for the last 50 days the smallest shit would "irritate" me and keep me awake.
Now at 53 days, I have had two great nights of sleep, and the key seems to be to stay away from sugary, starchy foods and hit protiens. I have also started to exercise each night, about 15 minuts on an eliptical that has been decaying in the garage for the last 4 years. This has really turned the tables for me.
Don't know if it will help at Day 3, just keep in mind that it does get better.