One thing I’ve learned with medical things: never accept a diagnosis years later. Things change in the medical field. Doctors learn new things. What was once diagnosed as forever headaches, can now be diagnosed as treatable or curable (depending on the root cause) migraines. I’m no doctor, but I always recommend to get reevaluated every few years. For me, regularly taking high quality vitamin D (5000 IU) cured my migraines.