I found a lump.

There is a spot on the back of my knee (in the "knee-pit") which has been bothering me for a few weeks. I could feel something when I walked, but couldn't feel anything. As time went on, the spot had become more painful. My knee has become a tad weaker in stride. And I feel something in there popping back and forth along the tendon while I walk. Last night, I found it. The lump.

It's as big as an olive and can be pushed back and forth next to and between the left back tendon on my right knee. And it hurts. Not bad, but its bothersome. It's sore when not touched and is painful when pushed on.

No idea what it could be. I have an appointment tomorrow morning to have it checked out. I hope it's nothing.