Has anyone been diagnosed with "Transformed Migraines"?

This is a form of Chronic Daily Headache, where migraines over time become more and more frequent, blurring together until there is a 24 hour-a-day continuous background headache with occasional superimposed more severe migraines symptoms.

I have been suffering from debilitating headaches for almost 6 years, precipitated by a spinal leak from a punctured dura. I will be seeking further treatment and hopefully a definitive diagnosis at Mayo Clinic in Arizona in the fall. I recently found an article on "Transformed Migraines" online. This description resonates with me, and I am curious if anyone on this site has experienced these symptoms.

Any information would be greatly appreciated!