Might be due to N number of causes. Specify your age for the further consideration.

Start proper medicine for it.

Good r u awaiting to hear music from joints

If heart valves are normal and thyroid hormones are also normal then normal massage and fomentation can cure this

This could be because of ligament ruptures, overweight, long time standing, and can be due to arthritis etc. For a proper prescription, you must tell the proper history of the patient, and for further details, you must have few examinations. You can discuss this case with me. As of now , on the practo app, there are some technical issues related to video consultation. If it's not urgent, you can try calling after two days.

Few tests needs to be done for evaluation

I have best treatment for this problem Chat or call me online

Consult ayurveda physician for proper diagnosis and root cause of ailments