Yep.
Sounds about like the withdrawal I went through, too.
Have you thought about going to an AA meeting? People at meetings will understand and can help you get through it.
I agree with Hawk, though. Eat as much food as you can stand. Sleep when you can - for me it took a few weeks to be able to sleep eight hours straight through the night.
It will get SO MUCH better, but don't pick up a drink no matter what. If you do it all resets.
That's all you have to do, not pick up a drink. Everything else will work out in time.