My mum had terrible nausea and vomiting when pregnant with my older sister, from about 5 to 38 weeks, yet wasn't sick at all with me.
I'm only on my first, but was sick from 6 to 26 weeks, needing ondansetron (zofran) from 10 to 26 weeks in order to avoid hospital. I'm just over 27 weeks now...so will be interesting to see whether it comes back, and what it's like with any future pregnancies.
Good luck! Hope you're one of the lucky ones next time around.