I need some insight please....

Okay ladies. I am ten weeks pregnant with my second child! And I'm completely miserable! Everything this time is nothing like I remember the first time being (5 years ago) I have no energy. I'm constantly throwing up! Which I know all these are common in pregnancy! But more importantly I'm depressed. I'm isolating myself.. From not just my husband.. But people as well. It's effecting my work. My house is a wreck! Who I am today is not me! Will it change? This is supposed to be the most enjoyable time.. Right? Well it's not!