What is your longest hangover?

I enjoy alcohol, but hate getting drunk. I drink 3-4 times a week, but only 1-2 drinks when I do. I haven't been hungover since early January, but that changed father's day weekend when my dad and I went to a beer fest. He drank me under the table and I was puking the entire night.
That was Saturday night and now its Thursday night and even still, I have mild nausea attacks at everything. Waking up, before bed, after working out, when I'm hungry, after I eat, if I'm too thirsty.
What gives? Has this ever happened to you?
What is your longest hangover?
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