I have chest pain, gastroesophageal reflux, pain in the sternum which expands until the upper part of the back, shoulders and neck. I can not exercise or lie face down. I'm taking medication for reflux.

Since chest pain can be caused by many causes (eg, gastroesophageal reflux, inflammation of the chest wall, pleuritis, pulmonary embolism, myocardial infarction, etc.), it is important to seek medical attention when these symptoms persist or interfere your daily acivities. The sensation feels like chest burst may be due to costochondritis (inflammation of the chest wall) or a hiatal hernia, but this symptom does not necessarily mean that there is nothing more serious. Chest pain that interferes with your ability to exercise or increasing the effort is disturbing because it is often an indicator of heart disease. I recommend you to consult your doctor immediately.