debib: My neurologist thought my migraines might be hormonal after several months of having them. I was so desperate to get relief that I had a hysterectomy - the neurologist gave it about a 50/50 chance of helping and, at that point, those sounded like pretty good odds. It has only made them worse - increased in frequency and in severity. After eliminating all the other "normal" causes for migraines (food triggers, etc.), he truly believes they are related to the barometric changes. If our weather changes (high pressure system comes in or moves out, etc.), you can bet money I will have a migraine. He says these are the most difficult to control (you can't control the weather) so it is a little depressing. The other clue that these are related to pressure changes is that every time I fly, I end up with a headache.
I am glad the hormone replacement has helped you! Good luck and hope you don't have another headache EVER!