Go get some Nyquil and go to bed now. Of course now that you've caved and had the red bulls it may take something more serious than nyquil to counteract that...

Last week or the week before, I had a head cold so painful my teeth hurt. Sounds like you have it now - and combining that with going off real coffee sounds crazy. Get over the cold and go off coffee next week. Or re-think that silliness and stay addicted with the rest of us.