A quick google search now has me scared because I had PIH with my last pregnancy and a lot of sites have mentioned blood pressure. My bp is very normal when not pg and at my last checkup a few weeks ago it was actually quite low. This seems to be just a pregnancy thing for me although last time it didn't start to go up til like 35 weeks.
I was going to wait til my next appt to bring it up but do you think I should call sooner? Im only 17.5 weeks.
I know I get something similar- pressure behind my eyes and a rushing in my ears. I just assumed it has to do with changing blood pressure/volume associated with pregnancy. Have you tried increasing your water intake drastically? Like aiming for a gallon a day? Maybe your circulatory system has expanded more than your blood volume (hence lower bp) and it makes you feel dizzy/pressure when you change the elevation of your head. Just a thought. But if you're really concerned, I would definitely call your care provider and ask. Go with your gut!
Mama to Avalon 1/07 , Austin 1/10 in between and Avery 12/11