I started having a middle upper back ache and right shoulder blades aching and now my right shoulder hurts if i shrug or do shoulder rolls. I also keep getting sharp pains up my neck. Does this sound muscular? I was also feeling like i couldn't get a full breath and my gp diagnosed acid reflux and said my back maybe muscular and gave me lanserazapole. The breathless feelings gone but my back/neck/shoulder ache hasn't.