lower inside knee pain/upper inside tibia

Hi, I am a highschool runner and over the past 2 days i have been having a lot of pain in my lower inside knee. I already have been diagnosed with osgood schlatters but i don't think this is the O.S. because it is in a different spot than normally hurts. I run 60 miles/week and most of it is run on roads. I have had to stop on my past 2 runs because of the pain. I feel it at the begining, but very slightly. By mile 1-2 it starts really hurting and by mile 3 it has been bad enough for me to stop. I think it also could be my upper inside tibia rather than my knee. Any ideas what it could be diagnosed as?

Off the cuff the diferential would be pes anserinus tendinopathy or bursitis. Overuse running injury like with Iliotibial band friction syndrome (runners knee) except on the medial (inside) aspect of the knee. Treatment would be rest for a few days, heat pre-exercise & ice after and get contributing factors checked out (footwear, biomechanics, etc). In severe cases of bursitis injections can be effective but strong chance of re-currence if the contributing factors not addressed.

Hope that helps

I agree with ATTIreland the differentials given. My thoughts are that because of ur previous history of O.S, your patellar is probably no longer tracking correctly...another cause might be problems with your foot...if you are flat footed with a fallen medial arch this can contribute to excessive stress on the medial aspect of the knee...you say you feel it as soon as you start your run... meaning its quite irritable...

Are you male or female? do you have any other issues like back trouble? do you feel this pain in any other activity?i.e stair climbing? what about normal walking? can you palpate the spot that is painful and is there a knee movement that makes it painful? can you squat without pain or duck walk?

You should rest it properly (you may need to lay off running for a while), using an ice pack for at least a week for 10 minutes every 2-3hours, massage the area with a few deep frictions going across it, you will need a quads strengthening program and some eccentric quads work after(such as slow step up/down on a step or gentle 1/3 squats).
If you want to keep running consider some form of support for your knee and patellar...

Have your feet assessed by a physio or podiatrist...an insole might help correct the problem on a long term basis