I have a terrible pain in my back.  Can you help me with understanding what causes it?
Sometimes it can be your posture or maybe bone or muscle aches?
My pain is in my neck and the pain travels down my left arm all the way to my hand.
Ouch that sounds painful! Seems like a carpal tunnel thing, or from sitting weird.
No, it originates in my spine.  Luckily the pain comes and goes, sometimes lasting for months at a time.
Maybe it could be a muscle strain?
No, it is spinal related.  The pain is like a burning sensation, or pins and needles, all the way down my arm to my hand.
Maybe peripheral neuropathy or Thoracic outlet syndrome?