Your suffering from gastro esophageal reflex disease (GERD) Normally while eating lower end of esophagus sphincter opens temporarily let the food allow into stomach then again it will close, but in case of gerd it can t. If you take heavy oilly spicy food at night, cause return of acid cause Acute esophgitis Nocturnal astma Chronic sore throat Barret esophagus Adeno carcinoma of lower end Treatment Eat less amount multiple times Avoid heavy food, with spices and fat at night Give more time after dinner to go bed Little head end elevation while sleeping Take proton pump inhibitors like tab. Nexium 40 or rabeprazole before breakfast If symptoms not improved consult your doctor.