As a vampire or experimentalist have you ever channeled energy so much to where you caught a nerve burn?
I cannot say I have. But then again I'm not sure in what way you are asking.
I have, yes. It is a very uncomfortable sensation in your hand or arm that you're working with(receiving or projecting). I have had an almost literal burning sensation, a tingling, and exhaustion of my limbs. It happens when you give or take too much energy during an exchange, a spell, and sometimes if attacked.
Ohhhhh, I understand now. Sometime this can happen to me when I do not pay attention. For excample, I was helping by friend out of the car and we were cracking up about what Maddie had just said, so when our skin made contact I could feel this tingling through my had and arm. I had to pull away, because it was not pleasant.