What causes pain in both arms from shoulders down to fingers? sometimes right hand fingers feel as if they are moving slowly. almost a burning pain

Look at your neck: since cervical nerve roots affect the hands as does the upper thoracic nerve roots. Often when there's neck problems or overuse syndrome (typing nonstop) can affect a carpel tunnel that can affect ur fingers. So call your doctor. Get a 2nd opinion too from an osteopathic doctor (DO) who specializes in NMM (Neuromusculoskeletal medicine) & can evaluate you medically, possible image your neck too.