When you have morning sickness does that mean that you have to throw up or can you just wake up and feel sick

When you have morning sickness does that mean that you have to th…?

http://www.chacha.com/question/when-you-have-morning-sickness-does-that-mean-that-you-have-to-throw-up-or-can-you-just-wake-up-and-feel-sick

Morning Sickness does not always entail regurgitation, it can just be an extreme stomach ache. Thanks for using ChaCha!