my son, 15 yrs old. Has been feeling nauseous after he eats (for the past few months). It had gotten to a point that he was afraid to eat. this has somewhat decreased, but he is still cautious of what and how much he eats. He has recently complained about not being able to see like blind patches (I have a history of visual migraines, so this is what i relate it to). today he told me that he is suffering from tunnel vision and dizziness. he says he is often nervous about fainting because of this. so now his symptoms are: nauseous when eats, blind patches, tunnel vision and light headedness and dizziness. he is 15 years old, about 6 foot, 170 pounds (about) and has been to the doctor s once, for an ear infection when he was 5 years old - extremely healthy.