I suffer from BPPV (benign paroxysmal positional vertigo), which has the same symptoms. My first and worst attack was when I was pregnant with DD1, 45 years ago. I haven't had a bout for about 5 years now, mainly because I avoid all movements which I know can trigger them, such as rapid change of orientation of head, looking at the sky, turning over in bed too fast. When we do sit-ups at exercise classes, they are nearly finished by the time I have lowered myself into position with foam blocks under my head!
I always used to carry Sea-Legs travel sickness tablets with me, but really the only thing that helped the dizziness and vomiting was lying prostrate for about 2 weeks, followed by having a spaced-out head for a month or so.
I know of some people for whom the Epley manoeuvre (suggest you Google it) has been successful, but the thought of it scares me, as the moves are just those that I hate! I am not sure whether Menieres can be treated this way.
I hope you will not suffer again in the future granjura, it is an awful condition which can rule your life. Certainly no fairground rides or water park slides with GCs!