My knee has been bothering me for weeks. I’m pretty sure I overexerted it during a tougher-than-expected boot camp-style workout class at my local gym. It was an hour of non-stop activity, with round after round of lunges and squats, high-knees running and stepping up onto things. The class itself was painful, obviously (it should be, right?), but it wasn’t until the next day that I realized how much I had overdone it. My knees berated me for weeks afterward the only way they know how, with popping, pain and inflammation. They eventually got the better of me, and I decided it was time to have the more painful of them looked at.