I am no shrink, but it seems somewhat reasonable to surmise that some of your compulsive/obsessive drive from the nicotine addiction is just spilling out into other areas of your life. It is not at all uncommon. Some people in the recovery world refer to this as "substitute addiciton." Food and sex are common ones.

I would just caution you not to **** anything that moves while you are in this adjustment phase, as that could potentially cause all kinds of longer term problems. Do you exercise? Do yoga? Any healthy hobbies? Maybe try putting that compulsive drive into one of those for a bit until this whole thing blows over and your brain chemistry gets back to a more normal baseline.