What would be the main cause of a burning sensation in the spine along with difficulty swallowing? im thinking reflux.

Let explain: Esophagitis is inflammation that damages tissues of the esophagus, the muscular tube that delivers food from your mouth to your stomach. Esophagitis often causes painful, difficult swallowing and chest pain. Causes of esophagitis include stomach acids backing up into the esophagus, infection, oral medications and allergies.

Heartburn: This can be secondary to reflux, however burning sensation along spine is not typical of reflux. Given difficulty swallowing this can be either case of reflux, candida, and/or narrowing of esophagus. Given your age above 40 and difficulty swallowing (dysphasia) which is one of alarm signs, endoscopy is recommended to rule out complication of reflux and to screen for barrets(per malignant condition.