Hi, thanks for writing to HCM.
From the description, Either you might have MENISCAL injury
or CRUCIATE LIGAMENT injury
scan is a must to diagnose these conditions.Meniscus
is a relatively avascular structure (without blood supply except for the periphery), so the chances of a torn meniscus to heal naturally is less (except when the tear is in the periphery).
I suggest you to consult an orthopedic surgeon and follow his advice accordingly.
Wish you a quick recovery. Regards