What is the medical terminology combining form meaning sensation or feeling?

Answer 1

Suffix is -esthesia (as in "anesthesia" meaning no or without sensation or feeling)
I believe that would be -esthesia. Ex: hyperesthesia. Not to be confused with -algia, a variant of -algo, meaning pain.
The Latin root sent means feel, the Late Latin sensat means feel, so sensat or senswould mean feeling or sensation.
-esthesia is the medical terminology combining form meaning sensation. So anesthesia is the absence of sensation, and hyperesthesia is excessive sensation.
-esthesia

Answer 2

The medical terminology combining form meaning sensation or feeling is "esthesio-".