Thoracic spinal pain no herniated disks what could this be? feels like a vise grip with burning pain

Could be referred: Pain from acid reflux, gastritis, ulcer or gallbladder issue. It could also be back pain as most back problems do not arise from a disc herniation. See your doctor to get evaluated.

You need a Pain MD: I assume you have undergone a Thoracic MRI. Sometimes intravenous contrast is needed to look at actual spinal cord issues as opposed to discs etc. Pain can come from any structure in your back including muscles, ligaments and joints. The facet joints are sometimes sources of pain and often diagnostic local anesthetic injections are needed to assist in this diagnosis and treatment.