It would be good to show an orthopaedician as an injury to the knee would be associated with soft tissue injury or ligament injury..since you are able to do all your activities unlikely a bony injury. But muscle and ligament injury has to be ruled out. If there is any such injury it will have to be addressed with ultrasound or mri scan as per the examination findings. Avoid doing any exercises or lifting weights or squatting or climbing stairs or walking long duration during the recovery period. Usually injury like this takes 6 weeks to heal.