The past weeks were among the worst, during which most of the days I really have no sleep even a nap, so I have become completely reliant to caffeine to be able to stay up all night, all day, all week of several weeks. Now that those weeks are over, I still have those cravings for coffee, for very strong one, concentrated one. I don't seem to function so well without them. In fact, it's frequent that I would wake up at night feeling thirsty but all that I'm wanting to taste is coffee, to drink it. I don't feel at ease without it in my day. It feels like I'm going to die or I'd rather die. It may look like I'm overreacting, but it's really how I feel, and I feel bad that I have a weak control over it. I couldn't just ignore the pull. What to do? Is it so serious that I should get to a shrink?