I used to (and sometimes still do, but its rare now) get that, but on my right side.
Do see a PT - if you don't take care of it you may start feeling it off the bike too - especially if you use a mouse at work a lot - I got rid of my mouse and use a tablet now - much, much better.
Make sure your bike is not too long for you - over reaching will agravate it a lot.
Try to be sure to move your neck around when you are on the bike - the draw the alphabet with your nose trick works pretty well even if it looks a bit funny