I have been getting stabbing pains between my shoulder blades when ever I move and have had a bad lower back for some time. Are these related.?

Maybe. These symptoms warrant a visit to the doctor, especially since you mention they have been bothersome 'for some time'. Your age and past medical history factor into the differential diagnosis. They may or may not be related-a review of your history and a physical exam will help to determine the source of the problem.