Welcome nasale to the forum. Sorry to hear about your Barrett's condition. I think I would find a new Dr. After hearing he didn't inform you about your Barrett's. I have it too and really watch my diet. I bought a book off Amazon ( the acid watchers diet) great info about gerd and diet. Number one is stop drinking soda, booze, regular coffee, fruit juices and oj. I only drink unsweetened almond milk and water. Almond milk is alkaline.
No tomato products of any kind. No Italian, Mexican, or fried foods. Baked fish, baked chicken and turkey are good. You can have a cup of low acid coffee ( healthwise brand).
I have mine with added almond milk instead of creamer. Eat fresh vegetables like carrots, cauliflower, broccoli, spinach, Lima beans, green beans,asparagus, mushrooms. Brown rice and baked potatoes are ok. Eat brownberry 100% whole wheat bread. For dessert I have peanut butter whole wheat toast. Stay away from high sugar and highly processed foods. Don't eat a lot of red meat. Stay away from foods with a lot of added acids in the ingredients. Hope this helps you! Time to change your diet. I didn't like it either but I'm used to it now. I also exercise a lot.