I got on the forums because I fear I have reinjured my ACL. I tore it about 7 years ago. This time, I heard the loud "pop" sound and it was deja vu. I just knew and the ER doctor confirmed. However, after seeing an orthopedic surgeon, he said otherwise. He seemed to think maybe I tore some cartilage but nothing turned up on the MRI. The Lachman's test, he said, did not show much disturbance in my ACL. Bones are in good shape based on the X-Rays and I've had an MRI but it was somewhat inconclusive due to existing hardware in my knee. I healed quickly and within a week I had full mobility. However, my pain has been increasing, and this pain feels all too familiar to me. I already had one ACL tear misdiagnosed and I wouldn't be surprised if I didn't have another. Maybe I have a strange knee. Anyhow, am I crazy? The doctor hasn't been able to give me any information about what I could have done to my knee. I have been focusing on rehab and losing weight but so far, no improvement. Anyone still think I tore my ACL or reinjured in some form or another?