Bad head rush, most of the time after standing

[W123]

Im 11 weeks pregnant. I had a miscarriage last year, and the day i began to miscarry i started to get really bad head rush. During this pregnancy, i have always had quite bad head rush on and off about 3 days a week, i sometimes feel like im going to faint. It sometimes gets better if i drink LOADSSS of water, but not all the time. I also have alot more discharge in the last few days then normal, i see it dropping down the toilet after i go for a pee. Im starting to worry. I  have my 12 week scan in a week but the wait is agonizing ! Please help me
Thanks in advance

[vacuumprincess]

My doctor told me this was normal.  I was very dizzy upon standing during this stage too.  I have 1 6yr old child, had one miscarriage & now am 37 wks pregnant.  I had headrushes only with this last pregnancy.  Very normal.  each pregnancy is different.  

discharge is also really normal.  Just cause you had a miscarriage before doesn't mean you will this time too.  I completely understand though (I was freaking out in my earlier weeks)

[LosingMyMindInGA]

It could be becuase of the increased blood flow.  I got that a lot with my first pregnancy, but mine was due to lack of nutrition and low blood sugar.  If I ate and drank something it went away.