opinions??

My doctor has been prescribing me zofran for nausea which started at 9 weeks. I'm now 15 weeks and still have to take it or I'm sicker than a dog; but my doctor said I shouldn't be this nauseous anymore and are taking away my meds. I'm not complaining if that's policy I can understand, but it's really going to suck being nauseated all over again because I "shouldn't" be sick anymore. Is this something I should be okay with? Because I'm a little upset right now considering I'll be throwing up multiple times a day still when I could have the option not to.