Wahine's right - talk to your coaches. I've been a TNT coach for almost 10 years now and I'd want to know if one of my riders was in pain like you describe. You're on your way to Shermer neck from the sound of things.

I'd want to watch you on the bike and make sure your hand and arm position are neutral and not directing bumps and strain to your neck. I'd want to make sure your fit is just right - I know you say you have been fit, but I would take your issues BACK to the fitter and have them check you over again. I'd also be curious to know if there may be some underlying over compensation for the broken rib that is manifesting with the neck pain. A good fitter should explore all that, but if they don't or don't get it right you should feel free to seek a second opinion.

Bike fit is not a one size fits all "thing". We had a TNT advanced coach clinic with Arnie Baker and he said he had re-fit HUNDREDS of Andy Pruitt fit cyclists in his career as a sports doctor and coach. He acknowledged that Pruitt had probably ALSO re-fit hundred of Arnie Baker fit cyclists as well. Not everyone's bike fit works for everyone. (Arnie put the washer of joy and hope in my right pedal, though, ending years of hip pain, so I love him. ).