It sounds like your initial knee injury
is causing some significant problems with your daily life as well as your preferred activities. Overall you are doing all of the right things in terms of seeing a physician with new symptoms and following up with your doctor
and with a physical therapist
. Given the significant new symptoms you are experiencing, the best thing to do is go back to your physician to start with a re-evaluation. Your symptoms sound different than your prior knee issue and do, in fact, sound very consistent with IT band injury/irritation. If you had some trouble with your knee and IT band in the past, it is possible that the changes in your gait or running stride because of the initial injury may have led to the development of a new problem in your biomechanics. It will be important to exclude frank problems with the muscles or bones (which an orthopedist can help facilitate) but you may need to repeat evaluation and development of a long-term strengthening and maintenance program with a physical therapist who specializes in this kind of injury. Modalities such as therapeutic ultrasound, transdermal cortisone or lidocaine, or electrical stimulation might also be helpful. Please speak to your doctor.