Sorry I'm a little late on this. I'm glad to hear your doing well, and half isn't bad at all, most people can't just go from cigarrettes to none w/o having 1 or 2 here and there. I have a friend who gets severe migraine, when she feels a headache coming on she'll have 3 shots of expresso (the caffeine dilates the blood vessels allowing for better flow to alleviate the headache) + aleve or tylenol. It doesn't always work, but it might help if you feel one coming on since I think nicotine has the same effect of blood vessels.