the fit doesn't look too bad from the pics you posted. The pain on the bike may be exacerbating a preexisting condition. So don't overlook things like poor posture, or hours behind a computer, old injuries etc. See a physio if you can't remedy with rest, stretching, and proper technique on the bike. Some things that help the people that I coach are to make sure that your elbows are relaxed and rotated slightly in towards your body so that you may lift your head with your chest rather than your neck. This takes practice, and conditioning so you have to really be aware of your posture on the bike while riding. Best of luck! and great bike!