I took five weeks off from running after finishing Kustmarathon Zeeland in October. There was this nagging pain and tightness in my knees. It was manageable during the training but never really go away. I thought that a month of rest and regular massage during my holiday would heal whatever injury I sustained. But the tightness remained. After an otherwise pain-free 10 kilometers two weeks ago, I was limping up and down the stairs. It was time to finally visit the physiotherapist.