Heart burn and just uncomfortable

Anyone else getting heart burn all day long but it’s way worse at night and is short of breath when trying to lay down or sit down? Nothing I do is helping I was taking pantoprotazal or however you spell it and doing two Zantacs at bedtime but they stopped working!!! And I just cant get comfortable anymore 😢😩 this is my third baby so maybe my body is just like wtf stop having kids 😂