I am very sorry to hear that this is such a persistent issue for you! You should certainly see a joint specialist
right away. And unfortunately, knee pain like yours is typically related to running and an active lifestyle.
To start with, it may be a good idea to avoid running or other high impact exercise until you can have the knee reevaluated by a doctor
. Continuing to run on an inflamed knee may only keep the symptoms going and could potentially result in permanent damage to the knee. I recommend seeing a doctor specialized in knee pain and knee problems, such as an orthopedic doctor or a sports medicine doctor
Runner's knee is still probably the most likely possibility. But I think it is important to rule out other causes, such as a Baker's cyst behind the knee, or damage directly to the knee meniscus or ligaments surrounding the knee. Based on what the orthopedic doctor or sports medicine doctor finds, they may recommend additional imaging of the knee (such as an MRI), as well as leg strengthening exercises, continued physical therapy, and avoidance of certain types of exercise.