I usually get one about once a month now. I think its hormonal. I used to take Topamax which brought it to only one every 2-3 months but stopped taking it when I had no insurance. I have insurance again but still decided to see how it would go w/o it. So it was once a month but I havent had one since March 1st now and its April 17th. Hmmm….please let it be awhile. I stopped drinking soda late Feb and wonder if that has anything to do w/ it?