Hi, You have gastritis like symptoms. Root cause mostly is diet or bacterial infection a urea breath test can be helpful. Second major cause is stress or depression for which they prescribed you Paxidep. Diet includes fruits, lots of vegetables and salads. Totally avoid non-veg, caffeine, alcohol, smoking area or pollution. These will prevent breathing difficulty also. For stress along with medicines, join online happyness course art of living or ombw, this will reverse most of your issues. I have seen in patients with similar history recover when combined with Paxidep; and finally they leave even medicines. These breathing exercises and sukshm yoga is very good in your case. Lipid profile, weight loss and multivitamins are helpful in long term cases. Take care. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. Sunny Madar, General & Family Physician