nausea after stopping anti vomiting medicine.

I started severe Vomiting like whole day since week 5.....by week 6 i sought help from gynae and was prescribed diclectin. 2 pills every night. Its a slow releasing effect. Now im currently at week 14. Im taking it on alternate nights, 2 pills each time. I tried to delay and take it on 3rd night but i couldnt take it. The severe Vomiting is still ongoing. Even plain water also can vomit. Im a merlion whole day. 😭 So i still hv to depend on it 2 pills on alternate nights. But i will slowly switch to 1 pill soon and see how it goes. By the way, even on this pill, every morning its standard that i will vomit when i wake. I duno y either.