There are a number of things it could be and certainly too hard tell in a forum. However, I'd look at overuse rather than setup as the likely culprit. Changes in intensity and volume can easily manifest in such probs even with a "perfect" bike fit. Take a look at your recent cycling habits to see what has changed and what might have contributed. FWIW, I'd be cautious about monkeying with the fit as a solution. That is a common tactic and one that can actually exacerbate the problem MUCH faster. Just be careful. Hope you heal up quickly!