I used to get dizzy alot, often depends on your Blood Pressure, I have low BP as it is and when pregnant it drops quite a bit. I remember we went to see Moulin Rouge and when we got up to leave I fell down a whole heap of stairs because of how dizzy I was from sitting for so long!

So if you are sitting for extended periods take it slowly when you first get up!

*hugs*
Cailin