That very much describes the sensation I would get, during the time I had been on and taken off the SSRI's.
It is a very strange feeling, as well as the "brain zaps" (not painfull) that I and many I talk with that felt while either using these class of meds or coming off of them.
Took awhile, but they eventually went away.
Sorry, I have no productive replies,but this sparked a point of relating to this weird sensation(s).
I wish you luck with this and through this.