Sorry to hear you are still in pain. Probably your injury was caused by ramping up your miles too quickly. Indeed, now that you are injured, fast cadences may be painful, so you may need to back off unitl its healed and then start back gradually, with easy gears AND a slow cadence. The recommendation for faster cadences are to allow you to be in an easier gear, but if you were trying to spin faster without dropping your gearing, that may have also have caused the problem. Probably its best to consult a sports med type PT or orthopod.