Ive had upper back pain for 3 weeks now between my shoulder blades & around my upper spine. ive gone to the chiro twice. it seems to help for a day then comes right back. im not sure what to do or how to help it anymore. is it my hiatal hernia?

Recommend you find an internist or a physiatrist and commence an evaluation to uncover the true cause of your symptoms.

Unless you know the cause of your symptoms, you should not expect that a chiropractic adjustment is going to make any difference. I would see your primary care doctor to get a diagnosis as to what is going on first. Then you can decide with that doctor what is the best treatment approach. Good luck.