I have been experiencing chronic migraines for about 19 years now.  About 15 years ago, I was diagnosed with a closed-head injury.  I currently take Imitrex for my migraines.  For a long time that worked and still does to a certain extent.

I recently relocated to FL from MI.  For some reason ever since I have been in FL my migraines are WAY more intense.  As in, had to go to the hospital to make sure my brains were still intact intense.    I have noticed this happens when I lay down and only happened in MI every 3-4 years, ans was only a stray migraine instead of every one.  This is happening with EVERY migraine now that I am in FL.Also I have noticed that although my migraines are more intense in FL they are less frequent.

So my question is this...I understand different possitions cause different things to happen to your body, but is there an explainable reason that laying down is making my head feel as if A shotgun has gone off inside it when it haden't done that before?  And what could be making them less frequent?