I experience motion sickness more easily on planes than on trains or buses. Boats are a problem too, in heavy seas.
In a large plane with no or very light turbulence the motion sickness doesn't brake through, it's only an uneasy feeling. In heavier turbulence, or in things like a small Cessna or a sailplane it gets worse. I haven't had to vomit in these situations since I was a little kid, but I do feel bad from nausea.
Funnily enough, I don't get seasick in heavy seas - even below deck without a horizon - but I will sitting at the dock with light motion. It's like my vestibular system "knows" to shut up when the chaotic motion goes beyond certain parameters.
I experience motion sickness more easily on planes than on trains or buses. Boats are a problem too, in heavy seas.
In a large plane with no or very light turbulence the motion sickness doesn't brake through, it's only an uneasy feeling. In heavier turbulence, or in things like a small Cessna or a sailplane it gets worse. I haven't had to vomit in these situations since I was a little kid, but I do feel bad from nausea.