absolutely check the bike fit! with a new bike, there could be minor differences with seat height, seat angle, reach (if you're more stretched out your position on the seat puts pressure on different areas), bar height, but i think it's definitely in your bike fit!! very minor adjustments make amazing difference. use the creme (lots of it - body and shorts) til you get it figured out, but when you do get it right it'll be like magic!!! don't be intimidated, experiment with little adjustments.
good luck.