Anyone having trouble with excessive headaches related to MTHFR C677TT?

My family member has had a 2 year+ headache. It ranges from moderate(rarely) to more severe (frequently).  We are doctoring at a Headache Clinic, but still have few functional days.  We have also done alternative treatments, supplements, and worked with Dr. Ben from mthfr.net. Still she is not well.

We are looking for a doctor specializing in the MTHFR.

Also, someone was asking about how to get tested.  I can get the information of the lab address where the samples were sent for testing.