yup it normal to a degree in preg. i fainted before i knew i was preg with dd1.
but if it has happened a few times you should mention it to your doc incase it is blood pressure, or blood sugar?? or just not eating enough and rushing about .
I don't know if i should start monitoring my BP. At the dr 2 weeks ago it was 145/63, when its normally around 110/(70-80)
that sounds like quite a difference...