Nerve impulses

This morning ive felt what are (I think) nerves going haywire.

Right now I feel a sharp shooting pain in the middle of my right forearm. And the arm itself feels heavy and a bit shakey.

The new muscle relaxer helps but it sedated me bad enough I feel asleep within 20 minutes and I dont even remember it. Its great it is helping..but def not something I will be able to use during the day.