Yo... You GOTTA be kidding me. I wish you all the luck in the world. I gave up Red Bull 5 or 6 years ago for my birthday and that first week was just headache filled hell. I mean... I do whip it out at parties now and again but I was able to make it stick.
I'm glad you're making the decision though. That stuff'll kill you.
Thank you @mikeydynamo i have been off 4 days now and so far i feel ok hope it continues thanks for posting.