hi welcome to our site read your query that is a very significant question and i appreciate your problem i will try my best to answer your query i would suggest you get an x ray of the knee immediately there is a possibility that you have a bone involvement if that doesnt show anything get yourself an mri of the knee to rule out a twisting injury to the knee if i would see a patient with your problem i would probably initiate an antiinflammatory medicine like chymoral forte till the reports show the diagnosis i hope this helps you inform the reports mentioned above (if any) so i can be of help further best of luck (please do understand that some problem remains as online texting cuts down history and examination thereby reducing the effect and efficiency and increases reliance on tests) (If the answer has helped you, please indicate this) dr.saumyamittal@gmail.com