Nausea coming off birth control.

Hey, I was on birth control for about two years, and this particular brand since January. My husband and I decided it was time to come off of them because of the effects they've had on me. That was a couple weeks ago. For the last few days I have had awful nausea, only threw up one day, but I don't throw up very often. Every other day I've a carsick like feeling, and I've felt close to throwing up or even getting very dizzy. Almost like a tipsy feeling (like I can feel the room move when I close my eyes.) Any who, I know I'm not pregnant because I had about 5 days of bleeding a day or two after coming of the pill.

I'm just wondering if those of you who have experienced nausea after birth control felt the effects for very long.. How long can I expect this to last?