Morning Sickness with Boys vs. Girls

My boss is pregnant as well, but she will be having her second child. Her first was a girl and she had morning sickness but it wasn't as bad. This one is a boy and it has been terrible! She was telling me she has spoken to a few people who say that morning sickness is worse with boys.

On the other hand, my mom said she had absolutely no morning sickness with my brothers but was queezy with me.

What about you ladies? What has been you experience with morning sickness boys vs girls?