A week in my knee started aching a few kilometres into each run

https://katecollingwooddiy.cavandoragh.org/north-york-knee-replacement-rehab-how-the-first-few-weeks-of-physio-unfold

A week in my knee started aching a few kilometres into each run, I thought it would subside, massage at session three actually eased the tightness in my IT band, weird relief.