I have the same problem! I hate cross-trainers. I have to concentrate really hard on the movements, it confuses me, and I end up moving something wrong and if you do that and stop suddenly you hurt yourself or even worse, fall off entirely.
I also don't like using the treadmill because whilst I am ok on it, as soon as I come off I get very dizzy for awhile. Like it feels like the floor of the room is a treadmill.
I avoid both when I go to the gym.
_________________
"There is no wealth like intelligence and no poverty harsher than ignorance."