Hello,
Last year, while I was practicing Rach's Op 32 N12, I felt a strange pain in my right elbow. I should mention that during this time I was - on a daily basis - playing hours of Starcraft, lifting weights, and playing darts.
I ignored the pain and pushed through. I then felt my fingers had lost strength and the pain wasn't going away - so I decided to take a break for a week. When I returned to the piano the pain was still there. To cut a long story short I spent the next 8 months in Asia, away from any piano playing, and stopped using my right hand for lots of things (computer mouse, etc...). I also stopped lifting weights - I was desperate to get better!
I returned to North America, hoping that my hand is better. So far I have learned a Bach concerto - but sadly I still experience pain within 5-10 minutes of playing. Sometimes I have to cut my practices short because of it. Currently the pain lasts for an hour or so after playing.
What's going on? Shouldn't the tendons have healed after 6 months of careful rest?
Here is a picture of the area of the elbow I am referring to: (it is on the side, near the bone)

I recently noticed that my HAND curls really awkwardly when I sleep, so I now sleep with this hand brace, I hope it helps.
If anyone has experienced this, do you have any input? What should I do? I really wanted to get back into piano and begin a career as a piano teacher, but this is bumming me out.
Thanks