This question has come up with disturbing frequency as of late. A HUGE thread was going on this very issue just recently. The short answer is, your hands/arms are pretty easy to destroy to be honest. You can give yourself "repetitive stress injury" RSI causing "Carpal Tunnel Syndrome" and potentially NEVER PLAY GUITAR AGAIN. This is the most extreme case of course, but it's worth paying serious attention when you notice pain in your arms. There is only one real answer.
GO SEE A DOCTOR ASAP.
Until you can get to the doctor,
1.)Stop Playing if you feel ANY pain.
2.)Always warm up with light arm/hand stretches before playing.
3.)Always cool down with light arm/hand stretches after playing.
4.)use a single ice cube on your forearm after playing to reduce swelling.
4.)Drink a large glass of water after playing to help flush toxins out of your muscles.
Playing at even semi intense levels is stressful on the arms/hands just like a full on gym workout would be. So you need to treat it as a sport in terms of prep and taking care of yourself. You get one pair of arms/hands. Imagine if you only got one pair of string for your whole life? How would you treat those? Would you take them for granted?
The reason I'm so intense about this is I gave myself severe carpal tunnel despite everyone telling me I was doing it to myself. I just kept playing/practicing despite the pain. Thinking I had to "work through the pain". In short I was just being dumb. I had to wear a brace on both arms for 6 months and couldn't play.
Todd
Hi All, Have a question here. I have a bit of pain in the back of my forearm almost right in the middle between the wrist and elbow, feels like the tendons are sore! Is that a common place to hurt, I have been doing a lot of Legato drills?? Usually if I massage it it gets a bit better, any suggestions?? Thank you