@FateHasRedesignedMost yes I have terrible travel sickness. My seasickness is particularly bad - a couple of summers ago DH and I took the boys out on I kid you not a pedalo (!) on the totally flat Mediterranean and I felt so ill I had to get out and swim alongside to avoid being sick!! Literally no swell whatsoever and (obviously) it was only going the speed of . . . a pedalo. My HG is also very movement-related so I assume the balance system is somehow involved. I've had labyrinthitis a few times too, quite similar symptoms. Hope you can keep struggling along for a bit longer how far along are you now? Metocloprimide had that effect on me too. (And eventually also neurological symptoms, which is why I had to come off it.)
Funnily enough, my six year old also TOTALLY knows. We have explained that I've a problem with my balance making me sick and dizzy, and the very first time we said this he immediately said "like when you have a baby"? And every day for the last week he's segued from asking about my illness / whether I'll have to go to hospital to some sort of question about babies: when you know you're pregnant, whether I could still have a baby, how do they get in there etc etc. Meanwhile my 8 year old (very literal and much less emotionally intuitive) is totally incurious and has accepted our explanation at face value. We won't tell the children till the 12 week scan I think, as I'm 41 and very conscious that even after a good first scan this week at 7 weeks there's still a relatively high chance of a first trimester loss.
I'm 7 and a half weeks now and have started vomiting again despite the Xonvea I threw up this morning, but not much, and so far it is controllable which is really great, I'm still managing to eat and drink small amounts regularly. Always before I have lost control very quickly after starting to be vomit and ended up in hospital not long after. If I can manage still to be at home when I turn 8 weeks at the start of next week I will be thrilled I was hospitalised before 7 weeks with both the boys. But I'm also very aware that I'm not yet at the peak, which for me is usually about weeks 8-10, so things could change quickly.
@thingymaboob in my first pregnancy the best bit was really late, about weeks 25-30 I think, so you could still have a better patch! In that pregnancy I was still throwing up every day until about 25 weeks and really thought it would never stop, but it did finally ease off at least for a month or so.