The one thing that is most notable from the CT scan image that you uploaded is that one of your submandibular glands is enlarged, from what looks like a stone blocking the gland duct. This could potentially be related to your symptoms, and is definitely something that I would suggest following up with your doctor
about, especially since a lot of your other testing has been negative. The specialist who would be best qualified to tell you whether or not this enlarged gland might be the cause of your symptoms -- and, if so, what to do about it -- would be an ear, nose, and throat doctor
The other specialist who might be able to help you, especially if the ENT doctor does not think this finding on the CT scan is clinically important, would be a gastroenterologist
. The sensation of trouble with swallowing can sometimes be investigated more closely with an endoscopic evaluation, where a small camera is passed down the throat to look at the structures in the throat, esophagus, and stomach. This is a straightforward examination that can usually be done with a small amount of medication to make you feel like you’re sleeping, and a gastroenterologist will be able to discuss with you whether it is worth pursuing. Make an appointment today!