I've recently recovered from an ITB injury which I actually picked up cycling when falling off the bike (avoiding a dog) and injurying my knee. While the actual painful area initially wasn't the ITB, that's where my symptoms were when hill walking & running.
I had pain in ITB doing both, the exercise I found on the web which sorted matters was Walt's ITB Special, here's a link with pics:-
Hi, I had pretty much the same symptoms back in April, front of shin and painful even walking but no noticeable tender area, I think rest is your best bet until it clears up. I initially limited activities to cycling but even that caused pain and so stopped and rested totally except for stretches.
Mind numbingly boring & seemed to show no improvement for 4 weeks despite a few physio sessions, then suddenly improved overnight. Then went to pick up unrelated calf problems
I'd go to Docs in first instance, should at least be able to diagnose the problem. May well say rest is the best cure and come back in..... if no improvement. I'd then look at chiropracter if it don't clear up quickly, as waiting time for nhs referral will no doubt be an eternity.