I don't know the answer to those questions. Just know you are not alone. I am almost 40 and I have exactly the same kind of headache you are talking about. It drives me crazy. It is right behind my eye like someone is stabbing me with a dull knife. And the Light, OMG, I feel like a vampire..... please no sun.

I don't take any birth control. Artificial hormones do a real number on my system. I am curious to hear what others are saying about this issue. Good luck.