Hello,
I have gone through your problem.
As an Acupuncturist, I suggest you to avoid drugs for pain management try Alternative medicine.
Next Steps
Pack your middle fingers (Hands) with Horse gram (Kullthi Daal) and partially Crushed black pepper with Micropore Tape for three consecutive nights.
(These finger point Corresponds your knees)
Health Tips
These may look very simple, But just give it a try. It's really very effective.
For more clear advice, Need to examine you in detail along with some lab test like X-ray, etc.
Revert back with all these reports.