Oh! I do, or did...sort of. I mean when my sister in law was pregnant, both times, she was feeling sickly for a good long while. Didn't help matters that she was stuck riding in the back of the wagon for a bit of that time too.
Far as the sea sickness goes, my brother Miles was always the one to get queasy and the like whenever he and I would travel by boat or plane. So I've seen folks dealing with both afflictions before....and can't imagine that having to deal with both at the same time would be pleasant.