Fun, isn't it ?
(Just kidding)
Been there done that, with a lot of others here I'm sure. And I agree, I wouldn't wish it on my worst enemy (Well, maybe my ex-wifes boyfriend). I really thought I was going to die the last time I went through withdrawls.
Hang on. Depending how far along you are with the disease, it may take up to a week for the major symptoms to subside.