Mood swings and OB question

blandbaby2012

Hi ladies, I have been fine until recently, but all of a sudden the last 3-4 weeks i am super moody. I go from happy to crying to mad I feel so bad for my hubby. Is this normal? Also i am considering changing OBs and want a few opinions. My OB tells me everything is normal, He admitted me to the hospital for observation because i have been fainting and he says oh it's normal. Is it just me or does having to go to the hospital not seem so normal? Should i change this late into the Pregnancy?