This morning is a strange one ... have any of you girls been dizzy??????

I got up feeling fine, actually great. Was thinking that AT LAST this flu and headcold is a thing of the past and I'll be back in gym by Wednesday. I did some housework, dishes, washing ... that kind of stuff and as I was getting back in the house after putting up some washing, my head spun .. so much that I had to stand still to get my balance And since then has not stopped. I am checking my bp every hour - 120/74?sh normal. Had my sugarlevels checked - 4.9 normal. I now have a slight headache behind my eyes, but other than that I feel fine, except for being extreamly dizzy when I turn my head, or stand up.

Any ideas what's up??
TIA

BTW - see that the tickers is not working. I'm 16 weeks pg.