You likely have chronic Gastroesophageal Reflux Disease (GERD) with possible Laryngopharyngeal Reflux (LPR).
An upper GI endoscopy is necessary to evaluate the extent of damage and rule out complications
The bad smell from your throat suggests possible infection (H.phlori infection)that needs proper evaluation
24-hour pH monitoring may be needed to assess acid reflux severity
Health Tips
Foods to Avoid
Spicy foods
Citrus fruits and juices
Coffee and caffeinated beverages
Tomatoes and tomato-based products
Carbonated drinks
Alcohol
Lifestyle Tips
Eat smaller meals throughout the day
Don't lie down for 2-3 hours after eating
Elevate your head while sleeping
Maintain a healthy weight
Avoid eating late at night