I'm a drummer and I get that feeling. Often caused by repetitive motion. Could also be the beginning of tennis elbow which I also went through. The ice is a good idea as are anti-inflammatory pills like naproxen. With the ice you can buy blue gell packs at your local drug store. Make sure you have a light towel between you and the ice. I use several every night for my back pain. If you don't wrap them in a towel like a dish towel you can get frost bite. I would also recommend an arm brace. They help me immensely. Spiney