Dizziness is a frequent side effect of Dexilant and omeprazole. Their common side effects are headache, rash, pruritus, dizziness, fatigue, cough, back or abdominal pain, arthralgia and myalgia, urticaria, dry mouth, photosensitivity, bullous eruption, fever, angioedema, bronchospasm, anaphylaxis, somnolence, aggression, vertigo, and insomnia. This is not heart attack. Heart attack will cause chest pain and breathlessness. But for safety, get done an ECG. Advice 1. Stop Dexilant and omeprazole 2. Take Ranitidine 150 mg every 12 hours orally for 15 days 3. Cinnarizine 25 mg per oral when dizziness occurs 4. Quit smoking and alcohol 5. Do not heavily at a time. Divide your meals into smaller portions and eat them frequently during the day 6. Avoid a particular food if pain occurs particularly after eating that food. Allergy particularly occurs for dairy products 7. Avoid eating 3 hours before lying down 8. Raise the head of your bed 9. Avoid spicy foods, fatty foods, mint, chocolate, tomato-based foods, coffee, and citrus fruits 10. Investigation - ECG Thanks