Talk to Rheumatologist on Pain In My Knees (Runner's Knee)

Assalamu alaikum I have been preparing for a 2km running in 7 minutes at a very intensive rate for last 1 week. I am new to running and it is very important for me to build my stamina for the run. I have only 12 days left. For last 2 days i am on complete bed rest as I haven't been able to run even 100m due to pain in my knees. Its difficult to use stairs. My knees began to hurt more after a walk. I am looking for an effective guidance or a QuickFix to this issue as It's stopping me from my training. Your valuable insights are highly appreciated. Thanks