Feeling dizzy and nauseous after eating durian is usually caused by the following factors: first, unclean diet can lead to acute gastroenteritis, at this time there will be dizziness, nausea, vomiting, bloating, abdominal pain, diarrhea, watery stools, etc., then you need to go to the hospital to line infusion and anti-inflammatory symptomatic treatment. Secondly, feeling dizzy and nauseous after eating durian may be due to transient hyperglycemia, as durian contains too much sugar, and taking too much at once can lead to a sudden rise in blood sugar, especially in patients with pre-existing diabetes, and consuming a lot of durian can lead to a sudden and transient surge in blood sugar, resulting in dizziness along with nausea. Third, transient cerebral insufficiency can also cause episodes of dizziness and nausea, which are common in patients allergic to durian.