I've been waking up with the burning sensation of acid reflux every morning for the past 3 days? what's wrong?

Acid reflux: You have hyperacidty & reflux, you can avoid spicy food, cofee, alcohol & junk food. Try prilosec OTC once a day & antiacids, avoid skipping meals, small frequent light & healthy meals are good for preventing the acid from causing damage to your stomach & see your doctor, you might need some work up. If your symptom persisted to consult a gastroentrologist. Good luck.