I have been getting testicular and back pain recently. these have now stopped, but i am now getting breast pain. can you help me?

Growing pain: Most likely you are having what we called a growing pain but you might need to check with a doctor to make sure you do not having a hernia for example that could cause similar symtoms other wise it is normal again check with your doctor.

Sure: My help is to tell you to get evaluated by a health care provider, as you may need some lab work as well as a physical to help diagnose what issue, be it hormonal or some other underlying medical condition. Best wishes.