Hi there, my friend has similar experiences to you and last year found herself needing 6 months of rehabilitation to get back to normal, she was hospitalised because her husband thought it was a stroke.. she had allsorts of neurological tests, CT scan, MRI scan, you name it.. but the diagnosis she got was that it was a Hemiplegic Migraine..
Apparently they can be hereditary but not in all cases. My friends father had TIA mini strokes so we believe thats where she gets it from but no one is sure.
The only preventative measure she has is half an aspirin daily. She was also taking something for cholesterol but no longer needs it.
It is good that you are going to the Hershey medical centre, I think you need to see a doctor that specialises in Migraine, as not many doctors have experience with these particular type of Migraine.
I hope you get the answers and treatment you need!
Thanks for the helpful advice and thanks for answering my question!