This sounds like something that happened to me last fall, when I pulled my bicep muscle. My elbow was really, really sore after I was doing supinated bicep curls. The bicep muscle attaches at the elbow. The tricep muscle also attaches at the elbow joint. I'm still learning muscles, but just wanted to share with you what I went through. I realized that I had tendonitis. I rested my elbow for few days, and iced it- the whole 20 min on 20 min off. Not sure it if this helps. I found this article below online. I am learning muscles and bones right now, so I'm all into this aspect. Hope you get better!!!
http://www.intelihealth.com
"Tendons are tough, flexible, fibrous bands of tissue that connect muscles to bones. When tendons become inflamed, irritated or suffer microscopic tears, the condition is called tendonitis. Tendons can be small, like the delicate, tiny bands in the hands, or large, like the heavy, ropelike cords that anchor the calf or thigh muscles. In most cases, the cause of tendonitis is unknown; when a cause can be identified, the condition usually happens for one of two reasons:
* Overuse � A particular body motion is repeated too often.
* Overload � The level of a certain activity, such as weightlifting, is increased too quickly."
