I am usually the queen of seasickness.
Trust me on this one...unless you have unusually rough seas, you will NOT get sick. They have stabilizers in the ship that keep it pretty steady. Going through the Gulf Stream seems to be the roughest time, and even then it's not too bad. I saw a lot of people with patches behind their ears, but trust me, if I didn't get sick, it would be very hard to get sick on a regular cruise!
Sue Ellen