It started back in July, one day I was doing heavy squats and on my last rep it felt as if something in my knee had shifted or popped. It hurt for a couple weeks after, so I layed off of it. I then started working it again, and I felt absolutely no pain on extensions, but when I got heavy enough on pressing movements it came back. It's come and gone since then. These past couple weeks it's gotten worse. I've done hack squats for my pressing motions the past 2 weeks. When I get to a certain weight or rep its back, a shooting pain through the center outside of my kneecap. Then it gets worse after the gym, as the night goes on it becomes worse, then by morning after I sleep its as if my whole ****ing knee is locked up!!! I wake up limping and cannot bend my leg but only slightly. I'll rub it and take a hot bath, it helps a tad, but what does this sound like? Anybody had a similar experience?