Anyone had a full body wave/warmth sensation run through them before?

Hi there. I’m just curious if anyone has ever had a full body warming wave sensation wash over them head to toe. 35 y/o female who broke C1 Oct 6th, had surgery after failed to form adequate fibrous union Jan 23th. I had 3 very good weeks then the symptoms started. I’ve had some other skin burning sensations and intermittent atypical skin sensations. No weakness or numbness thus far thankfully. I had a rush CT of c-spine that was static from post-op. I have a series of MRI’s this coming Monday on brain/c-spine. Hopefully will have some answers after that. Just curious if anyone has ever experienced similar symptoms. It’s very unsettling.