Hi for the last few weeks i have had a constant ache just under my shoulder blade at the top of my ribs on the left side i factured them two years ago?

Unlikely that they: Are the source of your pain. This could be myofascial or muscular in nature or even related to a local nerve issue due to entrapment within the shoulder or even from the shoulder itself. A neck problem such as a disc issue can present this way too. If it persists or worsens in spite of time., local treatment like heat or massage or use of otc meds if not contraindicated , see your doctor.