Pain below normal IT band syndrome pain point

I have had a pain below my right knee on the outside for the last week. It came on suddenly and hasn’t responded to NSAID’s or ice treatment (while I stopped running for a week). I thought it was IT Band syndrome but after looking up information about this it would seem that the pain should be right at the knee joint, but my pain is 1 – 1.5 inches below that. It seems to be approx. where the IT band inserts into the lower leg bone. Can anyone help me diagnose this and figure out what I need to do?