Airbus Pilot,
Don't worry about it, your body will get used to the sensations most likely after 5-10 sessions. This'll be one of the smaller challenges on the road to becoming a pro-pilot! Everyone has varying sensitivities to the sensations of flight - many of us are none too fond of turbulence - you just learn to adjust and cope, relaxation techniques are helpful in this area - try breathing in a relaxed, controlled way and relaxing your muscles..
Let you're instructor know when you're feeling queazy and ask him/her to lighten up on the unusual attitudes and steep turns until you adjust - take your time... too often we forget during training that it's supposed to be fun!
Also, initially try to pick flying days when the surface winds are relatively light (say 10kts or less) as this will reduce the turbulence in the friction layer - or you could ask the instructor to climb above the friction layer, roughly 3000ft agl or so..