Suggest Treatment For Injured Knee

I twisted my knee from a sitting position. I felt a pop. I could not put a lot of weight on it immediately. Thought I tore a miniscus. I went to an orthopedic doctor with an xray. Nothing showed up. It actually started feeling better. That was 2 weeks ago. Knee is still popping & feels week when I stand up. Now I'm experiencing a vibration in the injured knee.