I feel so bad for you! I, too, suffer from chronic migraines and have for a long time. I went to a specialist last year and was nervous like you. They did SEVERAL tests, including a full physical, blood work AND MRIs. I know you are scared that there may be something wrong, but after all of this testing, I was fine...nothing seriously wrong with my health. I continued to go to this specialist and I was on different prescriptions. They will want you to reevaulate your diet and how much sleep you are getting (all triggers). Up until a little over a month ago, I was getting migraines 2-4 days a week (each one lasting 2 days). I was incredibly depressed and tired of missing out on life...I have 2 toddlers and was not even able to enjoy being a stay-at-home mommy because I walked around in constant excrutiating pain! I say take your doctor's advice and also do your own research. I decided that, for me personally, I didn't want to have to constantly take prescriptions and then Imitrex on top of it. I researched and have gone the natural way...herbal supplements. I have only had 3 migraines in about a month and a half!!! This has been life altering for me and my family. If you want, PM me and I would love to tell you what has worked for me.
I wish you luck at your doctor's office today....you will get this figured out, I promise!
Tammy