Migraine with constant visual disturbances for 2.5 months

I have been suffering from visual disturbances constantly for 2.5 months. I have a constant flickering light and flashes in my right eye as well as a blind spot. When I say constant, I truly mean it has never stopped.

I have seen Ophthalmologist, Ophthalmologic Neurologists, Neurologists, and a large neurology team during an inpatient hospital visit. I have had MS, Lupus, Retinal, and Optical Nerve issues completely ruled out. Doctors believe that I am either still suffering from a complex migraine or experienced an extremely small TIA in only one artery behind my eye. I believe they are strongly leaning towards complex migraine.

I do not take birth control pills (for a month now). I am on a vasco-dialator (veramapil), two regular strength aspirin a day (to thin blood), and Fiorcet for pain as needed. I should say that most of the headache pain has been under control since I began taking veramapil. But I am still confused and scared. I have never heard of another person suffering from such a migraine for this long without one break.

Have you ever seen or heard of anything like this?