I'm getting an MRI on my knee because of constant popping. There's barely ever any pain, but when there is it's maybe 2/10 pain, very dull. Now I've still been running, but could I cycle or swim until I'm cleared by the ortho? The pain started about a month ago when I decided to go 6 days in a row running fast paced, 5k's. I'm getting back into boxing within the next couple months and I want to stay in shape. Can I just keep powering through the runs, or should I take a break from it?