Patient Profile & Symptoms: Shammi Aktar, a 19-year-old female, presents with severe abdominal burning, a rock-like heaviness immediately after eating, and difficulty breathing when lying flat after meals. She experiences severe nausea and stomach pain from oral iron tablets. She also suffers from chronic heavy menstrual cycles (menorrhagia). Key Diagnostic Findings: Upper GI Endoscopy: Confirms Biliary Gastritis with raw, red, deeply inflamed tissue (hyperaemic mucosa) in the lower stomach. H. pylori bacterial test is negative. Abdominal Ultrasound: Confirms a normal gallbladder with zero stones or blockages, but reveals a thickened endometrium (uterine lining) which causes her heavy periods. Hematology Blood Report: Confirms Microcytic Anemia with a low Hemoglobin of 10.9 g/dL, low MCV (76.3 fL), and low MCH (26.7 pg), showing small, pale red blood cells due to chronic iron loss. Kidney and liver functions are completely healthy.