On 30+ mile rides, I always end up with some serious pain in my neck/back, centered just above my left shoulder blade and spreading somewhat to the right. Stretching while on and off the bike helps a little, but not much. Even now it hurts.
From what I've read, this is a fit issue, but nothing I've tried has helped. One bike has the handlebars nearly level with the saddle and another has the bars approximately 4-6cm lower than the saddle. I have this issue on both bikes.
Has anyone here had this problem? What did you do to resolve it? Can this be fixed by stretching/conditioning/strength training or is it solely an issue with bike fit?