Worried about my son

[Green Lantern]

I had the same injury the summer before my senior year in High School recovered over the summer and went back to wrestling/track&field with no pain just a bit scared to do it again. its been 5 years now and been having clicks in my knee and a slight feeling of slipping again for the past 3-4 years now and occasional swelling after a heavy lower body workout. Went back to the doctor, had an MRI and found nothing out of the ordinary. all i can say it is just take it easy and don't go overboard.