Had the Bravo study in 2016. No mention of any abnormalities or issues. Biopsies were taken in the stomach and throat. Tested negative for h. Pylori. I had severe chest and back pain die in the study and for 2 months afterwards. A year later, I had another endoscopy by a different doctor, because I had begun having swallowing problems after the Bravo study. At that time, it was discovered I had an ulcer, erosion, and severe inflammation/gastritis. Biopsies were taken, and again, no h.Pylori. I was put on Protonix and Zantac. I had another endoscopy this year, and all looks better; however, I still suffer from esophageal spasms every few weeks. I never had this before the Bravo study.