My upper back keeps becoming inflamed, and red. it's also accompanied by a burning/pinching feeling. what could it be? doctor says i'm fine.

Medical massage: If the Dr is right, that's good! What you might have is related to fascia (read: https://www.verywell.com/what-is-the-fascia-3120347 ) and a liscensed massage therapist will see it. Only some are trained to release it, but they would refer you if needed. Once released there may be specific exercises you can do to keep it free. So, seek a good MMT - the only negative is it's probably not covered $.