Very normal! I put two stone on in my pregnancy with emily, and two weeks after having her via emergency csection i had lost two and a half stone because my stomach churned all day long. I had terrible indigestion and i physically couldnt swallow anything without wanting to be sick. I couldnt bring myself to eat! I'd have a couple bites of a sandwhich and i was so full, it was awful! If your worried then contact your gp, but i think it is indigestion xx