hi, Thank you for providing the brief history of you. A thorough neuromuscular assessment is advised. As by your history, that you have pain since 4 years, have you ever consulted the ortho for the same. As sometimes, due to the wear and tear of the joints, the pain can arise oftenly. Also, during the period time, there is hormonal changes which leads to weakness in the overall bodily functions, by which there is a tendency to induce more weight on the one side of the body. As for which you can consult your personal gynec who can help you understand the situation of hormonal changes better in detail. Also, if you are unsure of any injury in the past or present, then getting a musculoskeletal assessment is advised. Post which if the ortho feels an MRI or x-ray will be advised, if not then you may be referred to a physical therapist. By learning the exercises for strengthening the knee joint and also the overall body conditioning, you can have enough strength to balance the body weight. Also, since you mentioned you have pain in the little finger, you may need to undergo an urine analysis for uric acid levels. with simple medication, the levels can be brought back to control. In my clinical practice, female of your age complaints of bodily pain and also particular joint pain during period. By a proper musculoskeletal assessment and guided physical therapy their symptoms can be controlled. Regards Jay Indravadan Patel