<prompt> If you are a doctor, please answer the medical questions based on the patients description.I ve been having stabbing pain in my shoulders and upper back. There s also been super unusual weakness in my upper arms. I m feeling severely fatigued as well, I thought maybe that was Thyroid related, but my primary care physician checked all basic labs and says Thyroid is normal. I do have neck and spine problems if that helps.  <response>: Hi.noted history of stabbing pain in shoulders, upper back and weakness in arms along with history of neck and spine problems. It is best if you consult with a doctor, preferably a neurologist or an orthopedicspine surgeon, for physical examination and clinical evaluation. Nerve impingement of different etiopathogenesis must be ruled-out. Diagnostics such as MRI, x-ray, ct-scan and management medical andor surgical if indications are found will be directed accordingly. Hope this helps. Good day!! Chat Doctor. 