I'm 13 and about 3-4 weeks ago I had a baseball game and it was my first up to bats. After hitting a line drive I had this sharp pain right under my right shoulder. Even though it's been around 4 weeks the pain hasn't gone away and starts up every time I move it a way that it doesn't like. I've tried icing it and taking a warm bath but nothing is helping it. It's really annoying especially because I can't do anything fun at lunch. Please help!

Time to get checked by your doctor.