Try to adjust the chair height. That helped me.
I was resting the inner part of my forearm on the arm rest.
That was putting pressure on the nerves and muscles of my arm...
a small adjustment there saved me alot of pain!

Also, see if you can tilt the key board, I have and slide out
key board that I can tilt as needed..I was able to find a bit of relief by adjusting it......


good luck!