Good morning Kitty!
I remember a tingling in my left fingertips when I turned my head to the right. It happened about 4 years ago and was the beginning of my getting dxd with MS. My only lesion is in my neck.
But, you say yours is more weakness than anything. Guess I can't help you there.
The leg buzz when you drop your chin is called "Lhermittes sign."
I hope its not a sign of a flare for you!