Associated issues

What is the difference between reflux, GERD, reflux esophagitis and heartburn?
Reflux: gastric juices containing acid from the stomach leaks up into the esophagus particularly after meals when the lower esophageal sphincter (LES) opens. When reflux occurs acid induces a secondary peristaltic contraction of the smooth muscle of the esophagus and it returns approximately 90% of the acid and food to the stomach within a few seconds. The remaining acid in the esophagus is neutralized by successive swallows of alkaline saliva. Once a peristalsis ends, the LES closes again. Most episodes of reflux are asymptomatic.

GERD: stands for gastroesophageal reflux disease and is a medical condition when the reflux of gastric juices causes troublesome symptoms or complications. Reflux can cause a burning feeling rising from the stomach or lower chest up towards the neck. This is known as heartburn.

Reflux esophagitis: the inner lining of esophageal wall may be damaged by prolonged exposure to stomach acid. This is known as reflux esophagitis. Many patients with GERD have a normal esophagus on endoscopy. The first sign of esophageal damage may be the reddness or friability of the inner lining of esophagus (called mucosa) indicating inflammation. Appearance of erosions (a shallow open sore limited to the mucosa) indicates more severe disease. Esophageal ulcers (a deep open sore) can also occur to the more common erosions.

Will night reflux lead to sleep disturbance?
The reflux of stomach acid into the esophagus at night can be reduced by a number of simple measures. You should try to eat small regular meals instead of one or two big meals. It is best to avoid eating just before you go to bed. Try to leave at least 2–3 hours after a meal, before you go to bed. Reflux may be reduced if you raise the head of your bed by 4–6 inches