I haven't had that type of shaking.

I've had a twitching problem in my arms since I fell. It's not all the time any more but whenever I hear a loud noise it starts. It's not comfortable and I feel like I have to try to hold my own arms down to try and stop the twitching. It can last an hour or several hours. The neuro told me that it's probably an over-sensitivity to noise and my brain just doesn't know how to cope with it.

In the very beginning they had me on valium to stop it and after about a week, it did. Now it just comes on with the loud noise.