I do short runs of about 20 minutes per week (around 2.5 miles per run). Sometimes towards the end or while cycling I develop discomfort on the lower outside of the knee (pictured). The pain is mostly dull, on the outside and just below the knee. Both knees on the outside.
Once on a longer 5k run (3.1 miles) the pain was really bad and I had trouble getting up stairs without pain.
I'm not sure if this is IT band inflexibility or something else? What can I do to prevent it?