Aw, normal yan sa pregnancy, lalo na 'pag lumalaki ang baby at umuusad ang uterus mo kaya parang may pressure sa diaphragm mo, a few of us felt that around second trimester pa lang! But since it's on-and-off and mas lumalala especially pagkain ka, better to mention it sa OB mo next check-up para sure lang walang iron deficiency or other concerns, kasi sometimes ang hingal during pregnancy ay pwedeng related sa anemia din. In the meantime, try smaller frequent meals instead of big ones, at rest more often, it really does help kapag hindi mo binabaon ang stomach mo. Fingers crossed it gets better as your body adjusts, but don't hesitate to bring it up sa doctor para peace of mind mo, sis!