Sweating after eating (not diabetic) – does this mean I could be?

Patient: Over the past few months I’ve notice that I break out in a sweat when I eat (face, neck and chest only). I also notice that I break out in a sweat when I enter different climates… like I walk 2 blocks outside from to work to my office – when I get inside the building and into my office, I start to sweat (again only face, neck and chest). I am not diabetic.

Doctor: