migraines-do I need an endocrinologist?

I have had "hangover" type migraines for the past 15 years.  They are triggered by hormonal changes and foods-including when I eat.  For example, I can't eat after 6:30, no simple carbs after 4:00.  No caffeine, alcohol, MSG, etc.  2 years ago, I had a complete hysterectomy to try to regulate hormones, but there was no change in the frequency.  I have had great success with preventative meds, but they only work for 3 weeks, after which time my body adjusts and they never work again-even years later.  I am SO frustrated!  I can't go out to dinner, to parties, etc. unless I eat in advance.  My neurologist, primary care doc and gyn are completely perplexed.  Any suggestions would be greatly appreciated.  

[msniki412]

Are you taking any migraine preventing meds?? I too suffer from them for the past 8 years and currently take Inderal LA 120mg once a day. It prevents the migraines, although sometimes my sinus headaches can trigger a migraine but its a rare thing. I know for me, stress triggers most of my migraines. Talk to your doctor. Im only being treated by my GP.

[laurelleo]

Thanks for the advice on the RX.  I haven't tried that, and will mention it to my neurologist.