Hour 48 - awful headache for most of Day 2. Hunger much worse today than yesterday, but I half-expected this. I've been an accidental intermittent faster for years, so going most of a day without eating is no sweat, but right around Hour 30, my body was all like, "Dude, wtf?"
People say Day 3 is like, "Holy God, this feels amazing! I will never sully my temple with caloric trash agayn!" So, we'll see.