I couldn't edit my post, but i wanted to add that I drink 2 pots of coffee a day...
1 pot in the morning, 1 pot through the afternoon.

when i miss a few days, i get no withdrawal.. and I drink a dark roast coffee.. nice and rich.... but weird as it is, i do not get any headaches..

i do remember trying to quit in 1980 and the withdrawal was so bad, I couldn't stand up straight. it was so painful.. that's why I think coffee nowadays isn't completely coffee.. I think they add something to it to fill the contents without losing money. some kind of additive.. it could be chicory. it could be dirt, for all we know.