Thanks for using Healthcaremagic,
After going through your available details it seems that you sustained injury
due to twist which is possible now it is almost 2 weeks but pain is still persisting.
I would suggest you to visit an Orthopedic surgeon and get a M.R.I of knee done to exactly know the details of injury.
It may be some kind of ligament or cartilage
damage, but apart from analgesic
it may need an Arthroscopic intervention to get complete relief.
Hope this helps.
Dr. Akhilesh Dubey M.D.