Still sick!

I'm 13 weeks today and so discouraged and tired of being nauseous all day long! I have been dry heaving the past two mornings and I have thrown up a few times. I know some people have it a lot worse and I hate to complain. I was sick for 20 weeks with my first and I was hoping this pregnancy things would change when I entered the second trimester! Anyone else still sick in the second tri?