Nausea, vomiting, and dizziness may be caused by:1. Digestive system disorders such as esophagitis, gastritis, cholecystitis, enteritis, hepatitis, gastric ulcer, duodenal ulcer, and gastrointestinal bleeding.2. Other systemic diseases such as hypertension, hypotension, hyperglycemia, hypoglycemia, heart failure, arrhythmia, infection, poisoning, and anemia.3. Possible causes include labyrinthitis, benign paroxysmal positional vertigo (BPPV), and vestibular neuronitis.4. Intracranial diseases such as cerebral ischemia, cerebellar, brainstem, and frontal-temporal lobe lesions, including tumors, inflammation, and cerebrovascular diseases.5. Cervical spondylosis can also cause nausea, vomiting, and dizziness, often accompanied by neck stiffness and discomfort.6. Psychological factors such as depression and anxiety may also lead to nausea, vomiting, and dizziness.7. Certain medications, including non-steroidal anti-inflammatory drugs (NSAIDs) and antibiotics, can also cause nausea, vomiting, and dizziness.

