I'm 23 weeks (24 on sunday) and feeling really dizzy - the room is going up and down. (I'm not drunk!
) Yesterday I went on a river boat for several hours, and this has happened to me before, after a river trip - I get vertigo and feel like I'm on a ship at sea. Sometimes for days and days. 
But of course, being pregnant, I am Paranoid and wondering if it's a BP thing. I had hypertension towards the end of my last pregnacy, which I'm very worried about getting again, as it led to an induction, etc. But isn't dizziness a sign of low BP, not high? Or am I wrong? WWYD?
I think I might contact my MW soon if it doesn't pass. I'm just sitting here at the laptop, not doing anything energetic.