The main symptom of acid reflux is "heartburn". This is a discomfort or burning sensation which rises from the upper tummy or lower chest up towards the neck. Other common symptoms include:

• Nausea
• Belching
• Indigestion
• An acid-like taste in the mouth
• Persistent dry cough
• A feeling of a lump in the throat
• A burning pain when you swallow hot drinks

Symptoms tend to be worse after or with meals.

People often experience worsening of their acid reflux when they are lying down, particularly at night- this may lead to a chronic (persistent) dry cough, throat irritation or hoarseness, and disrupted sleep. 

However, anyone who experiences chest pain which is new or different to what they've experienced before, should seek immediate medical attention, as chest pain can be a symptom of a heart attack. Chest pain accompanied by pain into the left arm, jaw pain, sweating, shortness of pain or weakness is particularly concerning and may relate to the heart.