It is really frustrating when u suffer so much and none of the doctors that you visit is clearly able to explain you the cause of the pain. I will try my best to uncover some facts which should make you understand your symptoms better. Chronic dull type of pain between the shoulder blades is a classical symptom of Fibromyalgia
syndrome. What most of the doctors forget to explain to the patients is that it also has a psychological component to it. It is very commonly seen in ppl who are always stressed up, always on the go and do a lot of overhead and lifting activites. Degenerative muscle can been made out on a MRI
so if your MRI is normal you can rule it out. If you are doing all the activities that I have just explained then it requires you to take complete bed rest
with probably some analgesics and local ointments
and warmth. If this does not help then there are local anaesthetic
injections that can be given to the involved regions. Any sort of meditation
exercises will definitely help. Hope this has helped you.