welcome to health care majic,
Your present knee complaints are suggestive of ACL (anterior cruciate ligament
) or Medial meniscus
tear. Few clinical tests like anterior drawer test(for ACL) and Mc.Murrey test (for meniscus) will confirm the clinical diagnosis and making a right judgement.
For now you have to strengthen your knee and hip muscles and improve knee stability.
Wish you a good health soon.