I have barretts syndrome how did I get it?

Reflux. Barrett's is a response to chronic reflux of stomach content; not entirely known if it is due to acid, bile, enzymes, other. Not everyone with chronic reflux gets barrett's changes in esoph; cells look like normal stomach and intestinal cells (except not in intestine), less resistant to effects of refluxed stuff; become more damaged, abnormal, down the road to ca in minority. Freq. Endoscopy, rx.