dizzy, neasous now throwing up???

So I'm 32w 5d....Monday morning I was at the Dr and all of a sudden got really dizzy, warm, neasous, and felt like I was going to pass out. The Dr said my BP was a little high and I had a slight temp and sent me home to relax. Tuesday still no better the same thing today. I was doing OK at dinner and within 30 minutes of eating I was throwing up. The Dr did say I was anemic and had me start iron tablets about 2 weeks ago and I wasn't taking them regularly.... Anyone have similar symptoms or any ideas as to what it could be???