Hi Letgo,
So sorry you are in so much pain.
It does sound like you have encephalitis. It is very common with late stage Lyme.
Along with continued treatment, you might find that using something like Pinella will help. It is a neurotoxin detoxifier.
I don't know much about
the migraine meds. You could visit the migraine forum on this site to get some information.
Hope you get some relief soon.