re: Do you drink coffee everyday? Caffeine withdrawal?

I drink about two cups a day and maybe 20oz of a diet coke or tea with lunch.

I'll get a dull headache if I go without any caffeine for around 24 hours. Headache will last for 24-48 hours if I still dont take in any caffeine. By day 3ish the caffeine withdrawal process is done and I feel fine.

I dont intentionally try not to take in caffeine either. It will happen at times, like if I have a cold and am just trying to rest, sometimes when I'm at home visiting my parents for several days, etc.