Definitely follow through with a sports med evaluation and PT, if necessary. It could be your ITB, but if it is, there may be something else that's causing or contributing to it. For instance, when my hip and groin started hurting a couple years back, I never would have guessed that my weak glutes were the primary cause. As Catrin said, everything's connected.
Live with intention. Walk to the edge. Listen hard. Practice wellness. Play with abandon. Laugh. Choose with no regret. Continue to learn. Appreciate your friends. Do what you love. Live as if this is all there is.
--Mary Anne Radmacher