The only thing I can add to Wimseys advice is if you are not already having her keep a DETAILED headache diary, do so. A daily journal of whne the headache starts, how long they last how fast the pain builds, how high the pain builds, how long it stays at peak, how fast it retreats, any side ffecys, auras, drooping watery eyes, sinus issues, any triggers food or environmental that you have discovered, as many details as you can.
It sounds to me...a pure, uneducated layman......that your daughter may be suffering from a multiple diagnosis. Some of what you describe is migrain sounding, some is CH, and some even what we call CPH. So Wimseys advice, to work with a headache specialist neurologist, becomes critical. I stole the following from Bob Johnson, he doesn't mind! Doctors get about 4 hours total training in all headache types in doctor school....your garden variety neuro doesn't get much more so a specialist becomes a MUCHG better option for such a complex condition as your daughters:
LOCATING HEADACHE SPECIALIST
1. Search the OUCH site (button on left) for a list of recommended M.D.s.
2. Yellow Pages phone book: look for "Headache Clinics" in the M.D. section and look under "neurologist" where some docs will list speciality areas of practice.
3. Call your hospital/medical center. They often have an office to assist in finding a physician. You may have to ask for the social worker/patient advocate.
4. Multimedia File Viewing and Clickable Links are available for Registered Members only!! You need to

or

; On-line screen to find a physician.
5. Multimedia File Viewing and Clickable Links are available for Registered Members only!! You need to

or

Look for "Physician Finder" search box. They will send a list of M.D.s for your state.I suggest using this source for several reasons: first, we have read several messages from people who, even seeing neurologists, are unhappy with the quality of care and ATTITUDES they have encountered; second, the clinical director of the Jefferson (Philadelphia) Headache Clinic said, in late 1999, that upwards of 40%+ of U.S. doctors have poor training in treating headache and/or hold attitudes about headache ("hysterical female disorder") which block them from sympathetic and effective work with the patient; third, it's necessary to find a doctor who has experience, skill, and a set of attitudes which give hope of success. This is the best method I know of to find such a physician.
6. Multimedia File Viewing and Clickable Links are available for Registered Members only!! You need to

or

NEW certification program for "Headache Medicine" by the United Council for Neurologic Subspecialties, an independent, non-profit, professional medical organization.
Since this is a new program, the initial listing is limited and so it should be checked each time you have an interest in locating a headache doctor
Good luck. I'm dad to two grown daughters, watching them suffer ANY pain is just heartbreaking.

Joe