It happened to me too for the first about 15 weeks or so. I had to put twist tubes in my water.
Yes the Dr. told me to add ICE to my water because their is a theory it helps with nasea.
She also said add a piece of lemon, orange or whatever works to get it down I'm now addicted to icey lemon water ;)
Happens to me i have the worst morning sickness and sprite is the only thing i can drink