I had constant anxiety over a health issue everyday for the past 8 weeks. The last week or so I have been feeling a lot better and more "normal" because I know that I was just having irrational fears. Anyways it seems like I get these short headaches ever since I haven't been worried as much. I'm no doctor but I think that this could be serotonin levels coming back to normal which is the cause for the headache?? Is that reasonable or could it be something else? thanks