How tall are you? What size frame did you get? I'm short, 5'2, got the 49 cm frame. Was concerned it was too big (sounds like opposite of your problem), and should have gone with the 46. But we put on compact handle bars, moved the seat forward, and put a shorter stem on it, and will put an even shorter one on in the future. Happy with the handlebar height, no pain between my shoulders, just my low back (which I think it just about getting used to sitting different than I was used to on my previous bike bcause it's getting better). I was really squirrelly on the bike initially, because it responds so quickly to every little movement, but I got used to it and how to handle it. So, do you think the frame was too small? At any rate, I'm sure the people at the shop will take care of you!

-Jessica