I'm a chondromalacia sufferer and I'm young. 22 years young i left the sport of running a while ago never lost my interest though, at the moment I'm still suffering on zero miles a week. First you should be glad if it passes even if it means never running again. First you should go and see if you need insoles. Maybe your arch colapsed or your knee's finally have had it with your abnormal foot mechanics.
Find a therapist in podology. And let him have a check. For some insoles are a DIRECT CURE when it comes to chondromalacia.
In other cases: it cures the knes but stresses your body elsewhere, it doesnt cure your legs you should look further.
Am i an overpronator, supinator?
YES ---> possibly surgery (search for hyproCure)
NO ---> time to go to a therapist to lengthen your quads.
Shortend quads are most of the time the reason for such a pain.
In the meantime leave running for what it is. Go to the pool and learn how to swim. very similar to times and performances etc... also bike some helps to strengthen the muscles as well(but stay in the pain limit.
It could take years to have it all figured out. But don't give up. Start making all the appointments you can NOW.
--> podology(podotherapy) (don't know the word for such a therapist in English)
--> physical therapist (that gives you stretching exercises and helps your knee)
--> (if insoles don't help go for hyprocure)
I have worn insoles for 2 years now and slowly but certainly worsened my chondromalacia to the point where i ave pain every day. I'm looking for 2 more different insoles. IF it doesn't help I'm going to(let) operate my foot.
And as i said i don't mind about running anymore at this moment. And maybe I'll run again but as cross training for maybe a triathlon.I'm a swimmer now.I also go to the gym 2 - 3 days every week. And i have an ergo meter. I use it almost every day for short durations it is not healthy for my knee to bike. But i go 6-15 minutes hard. Note though that it is much more healthy then 6-15 minutes of running. I'm actually much better looking lately i packed some muscle but I'm still as fit as my running days(vo2max). I can produce 5 watt/kg on my short sessions which is equivalence of a vo2max of a 3 sub hour marathon runner (60 ml/kg/min +).This is what is the equivalence of max speed for 6 minutes that 5 watt/kg. I can hold it longer. So I'm sure I'm well fit.The swimming also helps of course (otherwise i never got the results on as little biking) i swim a lot now, 20 000 yards a week. 5% body fat at 180 pounds.Of course if you can bike without pain you can get as fit with just a bike or ergo meter. For me swimming is good. And the ergo meter is in function of the swimming and for the case i ever wanted to do a triathlon.Anyway good luck i have 2 more appointments tomorrow.And chondromalacia it' has little to do with age whether you can recover from it. It is which degree you have level 1 -- level 4. Level 4 is going to become local arthritis and sooner or later a new knee eventually. All other levels are treatable. Just make sure that in the period between now and the research you hurt your knee as little as possible.Take anti-inflammations after biking. which will not only decrease pain but also shorten the break down after activity.Also stretch after every activity.Best of luck and now you are not the only one.