Zofran and stomach

I am currently taking Zofran (day 3) My prescription says to take it every 4 hours. I am noticing that I am fine with the first tablet (besides constipation). When I take the second one, I am natious and have this incredible desire to not stop eating. Nothing seems to satisfy the hunger. Not to mention the incredible bloating and cramping Anyone else felt this way? Im going to go to just the one in the morning and just be sick the rest of the day once it wears off.

I am about 8 weeks pregnant and was prescribed Zofran by my ob/gyn for severe nausea. I bragged on the drug after the 1st dose because I felt wonderful. I was prescribed every 8 hours as needed. The first pill I took on a Tuesday night, the second on Thursday night when I developed severe motion sickness, the third on Friday (by then I could not stand to move around). By Monday of the next week I felt as if I was going to explode. I was extremely miserable. I realized that I felt worse after the Zofran because of severe constipation. I felt as if everything I had eaten for the last week was just sitting in my stomach. I had nausea, dizziness, headaches, indigestion w/reflux, excessive gas and bloating, and a horrible taste in my mouth. I stopped taking the Zofran and used an enema and prune juice to clear my system. Some how, compare to how the Zofran made me feel the nausea doesn't seem so bad!