Fainting.. ?

Emma
I have never fainted before in my life, until just this afternoon making my way back to my car at the mall and I collapsed.. quiye clumsily! So embarrassing, I am hoping I can put it down to dehydration? Luckily I had just bought myself a cold drink. Currently 16 weeks 6 days pregnant.. feeling okay now but it left me feeling very anxious and ended up in my car crying for no reason.. ah hormones. Is this something that happens? (This is my first pregnancy) Have been feeling anxious all week as my belly foeant seem to be growing plus no movement yet, although I understand this is normal.. Thanks! =)