So I'm on Day 3, and it's not too terrible right now. Day 2 was pretty bad. I had the craving all day, and my head was heavy and I was moving slow all day. I actually woke up this morning feeling better though. My head still feels a little different, and the craving is still constantly there, but it's not as strong. I've been pounding liquids of all kinds and stuffing my face with food, but if that's what I have to do for a few days, I'll do it.
I don't doubt it'll get worse again very shortly, but I'm feeling good about this quit.