Tingling back of neck

Hello, In the last week I have been getting a tingling sensation at the back of my neck, movements seem to trigger it.
I was diagnosed in 2019 with RRMS and my most recent mri in March should stable appearance.

It sounds like Lhermitte’s sign. I had the same feeling, more like electric shock, earlier this year.
I mentioned it to neurologist, last April as I’ve not experienced that weird feeling for more than twenty years.
It tends to lessen over time, but may creep back (of neck) after a relapse, I’ve noticed.