I decided last month to cut out caffeine while TTC because I don't want to "shock" my body once I find out. It's been going REALLY well up until today. I couldn't keep my eyes open and I caved and got a 16oz coffee.

OMG, I feel like I took speed or something! I'm moving at a million miles per minute and my heart is RACING!

Has anyone given up caffeine only to go back- and did you feel like a crack addict??:)