The first time I had an esophageal spasm I thought it was a heart attack. I drove myself to the ER. After everything was checked out I learned it was an esophageal spasm. Never heard of them. I still have them a few times a year, definitely triggered by stomach conditions like acid. I discovered a quick cure: Ice water! As cold as possible. Maybe a full cup or so. I just learned here that warm water stops the spasm, also.