Maggie,
I am new to this too... been reading but this is my first post.
You said you have chronic migraines so you may have already been down this road... but my fiance had migraines for years and no medication helped, so they finally ordered an MRI (he had scans and such in the past but never found anything). The MRI showed a rare genetic condition that is very often misdiagnosed. It's called a chiari malformation. If you have never had relief from migraine medication I would urge you to do some research and even if you have had an MRI I would also urge you to ask the doctor to look for this (at the base of the skull/brain, the cerebellum doesn't have enough room and ends up going down into the spinal column). If you have some time I would do some research on this condition. My fiance had brain surgery to correct his 2 months ago and has been nearly pain free ever since! Good luck with your job! I have endometriosis and have chronic pain due to the scar tissue that grows in my abdomen... it's not easy, but at least we have some support in this group!