I Have Had Left Elbow Pain For Over 3 Months...

I have had left elbow pain for over 3 months... it started gradually... it feels as if I slept on it for a long time and very painful to extend my arm. Hurts to the touch in the area especially when I push it. My right elbow was like that also but not as bad as the left... I do alot with my left arm and it feels so much better some days when I don't use it as much...... My elbow/arm is not swollen.. Feels like a very deep bruise. I do get some relief when I sleep on it but as soon as I try to extend my arm... pain! I was diagnosed with carpal tunnels over 3 years ago but I don't think it has to do with this