<s>[INST] Hi I use my shoulders especially my right shoulder in a repetitive rowing motion in my work place. I have had unbearable pain under my shoulder blade all the way to nearly my armpit. It s been over 6wks now and the pain is non stop, I can t even lean back in a chair without pain [/INST] Hello  ,since u have unbearable pain ; u might have torn your rotator cuff tendons or might have one of the lesion called SLAP. i would strongly recommend you to go see a doctor who would ask for an x ray to rule out bony injuries and go ahead with usg/mri to confirm the diagnosis after clinical examination.mean while u can apply some ice and take analgesic for time being.hope this helped you </s>