swallowing foods and feels like it get stuck in throat

If they couldn't find anything wrong with him then its probably a mental issue. I'm not sure how you would go about pursuing it but maybe hypnotherapy is needed.

hope this is helpful

Sounds very much like a thyroid or gland issue. It could be an anxiety issue, but instantly stating that is what it is, and he need's hypnotherapy would not be what I'd recommend. .Just based on what little you posted above. I would advise the following. I would certainly lean towards have a gland specialist see him before I would refer him to a mental health professional. I'd get him in to see a Endocrinologist. I would also request to have all of his gland level's tested. Often the tissue can get very thick/tender in the area due to a goiter or thyroid. Also, has he ever accidentally gotten anything stuck in his throat? Maybe a childhood accident/injury? such as a Popsicle stick? Could be scar tissue from an old injury. However, I'd see the RIGHT type of doctor first and this would be an Endocrinologist. The first signs of hypothyroidism is not being able to swallow, feelings as if you can't complete a swallow, and it's the last thing most doctor's consider. In addition, not being able to swallow does cause panic in the person who's suffering from it. . Please, keep us posted on what the end result is.

Have you ever checked for food allergies? Do a search for Eosinophilic Esophigitis and see if those symptoms sound familiar. My husband and 5yr old both have this and symptoms are exactly what you are describing. It is relatively newly described and we had an allergist and GI doctor at first who knew nothing about it. The only way to diagnose is a biopsy from an endoscopy. Just be sure they looked for this when he had the upper GI. If he does have this he must get treatment or he could end up on a liquid only diet as an adult.