Acid reflux typically feels like a burning sensation in the chest, commonly known as heartburn. This burning pain often occurs after eating and can worsen at night or when lying down. The sensation is caused by stomach acid backing up into the esophagus, irritating its lining

. Other common sensations and symptoms include:

• A sour or bitter taste in the mouth due to acid regurgitation

• A feeling of food or acid coming back up into the throat or mouth (regurgitation)

• Chest pain that may feel like pressure or discomfort, sometimes confused with heart pain but caused by esophageal irritation

• A lump or fullness sensation in the throat (globus sensation)

• Hoarseness, sore throat, or chronic cough due to acid irritating the vocal cords and throat

• Burping, nausea, bloating, and upper belly discomfort

Symptoms often worsen after heavy meals, bending over, or lying down, especially on the back

. In summary, acid reflux feels primarily like a burning chest sensation (heartburn), accompanied by sour taste, regurgitation, throat irritation, and sometimes chest pain or cough. If these symptoms occur frequently (more than twice a week), it may indicate gastroesophageal reflux disease (GERD), a more chronic form of acid reflux