Pain in the upper back caused by acid reflux would not be persistent; it would come and go (often related to eating certain foods) and also often be accompanied by heartburn or a slight burning sensation in the upper abdomen. Acid reflux causing upper back pain. Acid reflux may cause back pain in several ways, firstly due to the vagus nerve irritation, which supplies the portion of upper back people who drink alcohol, apart from suffering from acid reflux may also land up in condition called pancreatitis, this condition in its mild form may cause pain in the stomach radiating to back.
acid reflux causing upper back pain