Is it just me?

So this is my third baby. I love all my babies to death and I love love love being pregnant and expecting and all that good stuff but this pregnancy seems different....I tend to get angry easy and not like hit anyone or hurt anyone angry just angry and I can't pinpoint why. I've noticed more mood swings than I remember with my last two. Tried talking to my doc about it she recommended counseling but I just feel like that was not really helpful advice entirely. Sometimes I feel so overwhelmed that my mind is just ten thousand places all at once and it feels like I am losing my mind thinking about it all. My husband doesn't seemed concerned by it. Am I just overreacting? Has anyone else experienced similar things??