It could be hormonal. Is this occurring around the time of ovulation?
+1
I suffer from migraines. My triggers are hormones, lack of sleep, allergies (worst in spring/fall), and stress. Generally, I will not get a migraine when only one of these triggers are present. If 2 or 3, I might get a migraine. All 4 is a sure-fire recipe for a migraine for me.
Although I've had migraines since around 10/11 years old, I only recently identified the hormonal trigger.
Relpax has helped me tremendously when I do get a migraine. For prevention, going off BCP & using non-hormonal birth control has helped, as has aggressive control/prevention of allergies (with antihistamine/inhaled steroid).
I've heard for some women BCP may actually help with hormone-triggered migraines. If you get aura with migraines, you should not be on BCP.