I am feeling difficulty to breath when i am eating.i am also gasping when i climb stairs.for small amount of food intake i am gasping and feeling full?

Fullness /SOB: May be reflux with or without H pylori, as the acid can irritate lungs can try ranitidine and see if helps, also check chest xray looking for lymph nodes, may need endoscopy looking for esophageal strictures/Schatzki ring or lesions in stomach, check gallbladder wiht ultrasound ,Check thyroid and CBC . follow up with doc this week