Second opinion

So I have been self-diagnosing myself for the last few weeks thru Google...bad thing. I have seen way too many pictures of how the knee works. I was getting impatient with the physical therapy so I went to see a sports medicine/knee specialist. He tells me that it is not my meniscus...that is something one would call "runner's knee"...something to do with might left thigh muscle not able to hold the knee cap in place when i went biking...so it was sliding all over the place. He did a rudemantary strength test for both legs...my right leg was indeed stronger. Now I have to go back to PT twice a week and he says it should get better in my case.