Hello and welcome to MedHelp's forums. Very sorry about this issue after the endoscopy. It is reassuring that your doctor is not concerned but can understand why you are not satisfied with that answer. https://www.mayoclinic.org/tests-procedures/endoscopy/about/pac-20395197. Complications such as a gastrointestinal tear or infection are very low after endoscopy but they do happen. Chest pain is one of the symptoms. Being uncomfortable is quite common though after the procedure. But further evaluation is in order if this does not resolve. People generally do not have chronic pain after an endoscopy so wouldn't be worried about 'having to live with pain' forever. However, you may need to follow up in the near future if it is not gone to make sure you aren't having a complication. Let us know what you think.