Hi Welcome to healthcare magic After going through your query I think You are suffering from osteoarthritis of knee . Analgesics such as diclofenac slow release tablets is helpful in pain relief. Diacerine and glucosamine sulfate protect cartilage from breakdown and help in cartilage regeneration. But as you go it during dance it can be meniscus injury which can be seen by MRi. You can discuss with your treating doctor. I do hope that you have found something helpful. If you have additional questions or follow up queries then please do not hesitate in writing to us. I will be happy to answer your queries. Wishing you good health. Take care.