33 weeks& 2 days, nausea and dizziness

Blood pressure is normal, iron is normal, everything is normal. When I hit 32 weeks I got nauseous off and on through the day like I did when I was first pregnant (morning sickness).

Now I am getting ridiculously nauseousx to the point I have to lie down, and have been getting dizzy, which makes it worse.

Anyone possibly know what this is? I call my doc and he says to try and drink water, which does nothing. And is obviously not improving anything.

Any ideas, ladies???