I think there's a lot of questions that'd have to be asked like, does this only happen in the morning and how long has it been going on, how long does it last, has any over the counter products (pepto bismol, etc.) helped and could it be a temporary bug? If it's causing discomfort in your life, you should definitely get it checked out. Obviously, there could also be a serious medical issue associated with nausea after eating (another reason to get checked out) but it's very unlikely and I myself, have had periods where I felt ill right after eating for no apparent reason, over the course of a week or so. I do have emetophobia (phobia of vomiting) so I'm hypersensitive to how my stomach feels but typically when I go through these phases of little to no appetite followed by nausea, they go away on their own. If you do see a doctor for it, let me know what they said!