You have already been given some great info - check out the flight services listed in your area and go on a fact finding mission.
Most will be able to share details of their program with you. And, with a bit of luck, I'm sure that you will be able to find out where your qualifications place you in the hiring mix.
This will be time well spent.
Now, as to the MOTION SICKNESS. I think that there are just certain folks that are prone to this - I think it can be impossible for some to ever get over. This is a tough job --- add unrelenting nausea and, in my opinion, it would be impossible. Sure, I think everyone has it on an occasion - but, if you have a near disabling problem with this --- you may be best equipped to excel in another area of nursing. Let me try and be direct (and kind!) IF you are my partner and you are "green" to the point of NOT being any assistance to me or the 1 (or 2) patients we have --- well, not to be offensive, but I NEED a partner that will be a participant.
So, no matter how much you may WANT this. Or, HOW much it may PLEASE you to do this job - the REALITY is this...IF you are making yourself SICK every time - IT may not be a good fit.
Good Luck
Practice SAFE!