> In my personal experience, I found the morning sickness was an indication
of
> a health pregnancy.  My first pregnancy, no morning sickness and I
> miscarried.  The next two, felt like I was hungover for 3 months with
both!
> Both were healthy babies

I think morning sickness is from the progesterone hormone. That's the one
that keeps the pregnancy going in the first trimester.
Maybe this is also causing PMS. Too much estrogen... evoking too much
progesterone.