Your reports are reassuring - celiac negative, fibroscan shows no significant fatty
liver, so this picture is functional dyspepsia with IBS-type bowel habit, which is exactly why the burping comes even with plain water (mostly air swallowing). The low-dose antidepressant your gastroenterologist added is standard practice for gut-brain pain sensitivity, not for depression, so do continue it. Your real gap is iron: iron 43 with Hb 11.5 and hair fall means the oral iron did not absorb, so get
ferritin checked and take iron on an empty stomach with
vitamin C, never with tea, milk or your esomeprazole - and
B12 injections are fine to continue. Eat small frequent meals, no aerated drinks or chewing gum, and keep the psyllium going. Black stools, vomiting, food sticking or unexplained weight loss need an endoscopy without delay. Book a Practo consult with me and we will fix the iron and the gut symptoms together.