Ay, normal yan during pregnancy, lalo na as you get bigger! A few of us moms noticed the same thing, ang hingal and that sharp pain sa taas ng tiyan when you've been in one position too long, kasi lumalaki ang baby at pushing na sa lungs and organs mo. Try to switch positions frequently, take breaks from standing or sitting, at make sure you're getting enough rest kahit mahirap, pero if the pain is getting really intense or persistent, better check with your OB just to be sure everything's okay lang.