R.I.
I started out taking the seasonal but because of the bleeding between periods my doctor switched me to Seasonique. Yes in the beginning I had some problems with nausea so I started to take it at night before I went to bed and the problem went away. I guess I just started to sleep through the nausea. Give it a try it may work for you. I have been taking it for almost a year now and I love it.
Also I asked my doctor what the difference was and he said that the seasonique has more hormones then the seasonal and normal birth control.