Caught a bug - call my OB?

32w4d - I have felt off all day, too warm but too cold, slight upset stomach, headache that wouldn't go away, then at 7 it got much worse when I made dinner, I got dizzy and wanted to throw up. It's 4 hours later and I've slept most of the time, I was freezing until I woke up just now and I felt so hot so I took my temp (100.4) I haven't thrown up yet but wish I would so I could feel better. Moving too fast makes it worse, being too hot/too cold is worse, my muscles ache. I haven't felt like this since first trimester when it was the flu but I didn't have a fever with it and I threw up a couple times and then just had body aches for a week and was better. I get the flu shot every year, last time was in December. If I wake up with the fever in the am should I call my OB and ask them what to do?