Hello @rsumsion and welcome to Mayo Clinic Connect. On Mayo Connect we are not medical professionals and therefore we cannot diagnose health problems. However, we can share our own personal experiences. I also have had, on occasion, the type of hot flash/sweating that you mention following a meal. For me, it seems to be related to a pre-diabetic condition. However, there are other digestive tract diseases that are also known to cause these symptoms.

If I were you, I would have a consult with both a GI specialist(for an upper endoscopy) as well as an endocrinologist. Together they might be able to help you with these symptoms.

Have you previously consulted with either or both of these specialists?