Welcome to JustAnswer Health...and thank you for your question. I am a verified Expert and am delighted to help you today. The pain and tenderness may be due to a strain from what happened. Treatment is ice to the area and anti inflammatories such as ibuprofen per package directions as well as avoidance of any movement that would cause pain. If you follow these measures it should clear up in a few days to a couple of weeks. If it continues to bother you, see your Doctor for an examination and treatment.I hope this informatiton helps you. If I can help you further, just let me know.