burning and pressure of the chest, heavy sweating and red face

[Betty3500]

For the second time in a couple of months my adult daughter has experienced what she first thought was bad heartburn.  She said it was a burning with a bit of pressure in her upper chest then her face would turn red and she would break out sweating heavily and the burning became painful.  Both times she was taken to emergency where they ran several tests but did not find a cause.  The symptoms lasted about an hour she did take Zantac and Tums when it first started but it did not help at all.  Anyone have any ideas on what could be the cause as I know something must be wrong but we are at a loss?

[Betty3500]

They took four vials of blood for various tests, did an EKG and checked her blood pressure.  I am not sure what else but the symptoms went away after about an hour. She had not eaten anything yet that day and never contacted anything different than her normal.

[Pantx]

Hi. Emergency rooms are only going to look for emergent conditions or conditions that are not stable. Do you know how the issue resolved in the ER? (did it just eventually go away, did they give her meds etc?)
Also, did the ER do an EKG, Blood Pressure Check, Blood Panel etc? If so I recommend ordering a copy of the records to look at them yourself. Usually GERD does not have sweating accompany it. Does she know what happened right before the reaction? (spicy food, alchohol, energy drinks or any kind of stimulants, stress, anxiety etc.)
May not be a bad idea to just check in with cardiology since the zantac and tums didn't really do much