Acid reflux is estimated to affect up to 20 percent of Americans. It is caused when stomach acid reaches the food pipe or esophagus through the lower esophageal sphincter (LES). The LES is a ring of muscle at the end of the esophagus and is normally closed. It opens to allow food into the stomach and then closes. If the LES muscle is weak or opens frequently it can cause stomach contents to back up into the esophagus.
Frequent acid reflux (greater than twice a week), for which you have to take daily antacids, acid reflux that affects your life or has damaged the lining of the esophagus can indicate gastroesophageal reflux disease (GERD). This should be treated to avoid complications so it is important to consult your doctor.
Symptoms will vary between individuals and depending on the frequency and extent of reflux. Symptoms can be mild or severe and include:
If GERD is not treated it can lead to serious complications through lasting damage to the esophagus:
The symptoms of acid reflux and heart attacks are largely overlapping so can warrant a visit to the emergency department. You may suspect something more sinister than acid reflux if:
Additional symptoms that may indicate a heart attack include:
Other conditions to be ruled out are pneumonia, chest wall pain or a pulmonary embolus. Another gastrointestinal cause may also be possible. Symptoms such as bloody or dark stools or black vomit may indicate that you have an ulcer that is bleeding. This is considered a medical emergency and requires immediate evaluation.
Acid reflux is a common condition and the most common symptom is heartburn. If acid reflux is frequent and affects your quality of life there is a chance that you may have GERD. You should consult your doctor and get treated to avoid complications. Emergency conditions such as a heart attack may mimic acid reflux so it is important to get medical help if you suspect an alternate diagnosis for your symptoms.
https://www.nhs.uk/conditions/heartburn-and-acid-reflux/
https://www.medicalnewstoday.com/articles/146619#diagnosis