It sounds as though you have had extensive testing done. Was it for this current issue, or other issues? Some symptoms you are relating are typical with a stroke, some for MS, so it's hard to know what direction to go in here.
It all started 7 years ago... my right hip got numb for weeks. Got my feeling back. And started having a weird thing with my right foot, but it got back to normal again.
Then a year later i got pregnant and Had alot of stress going on in my life..my right side felt weak and my visio on my right eye was dimmed and my eye hurt alot. My vision whent almost back to normal. My pupil is slower. This has been going on and of for years. But now its more severe and i got this strange thingling thing going Around my body.
And i dont understand this ear and leg connection? Why does my brain send signal to another area when my ear is touched?
That I cannot explain, and don't really know if it's connected or not. I guess the neuro would be your best resource for that. I understand about migrating pain and referred pain, but that has me baffled.