Nausea
Ladyluck,
Keep at it. It will pass. Yours truly had the same problem going through RAF pilot training. Some things that might help:
1. Never fly on an empty tummy - low blood sugar makes you more prone to air sickness - in any case you need something to barf up if you have to
2. Always carry a barf bag with you within easy reach - even if you don't use it, it will make you subconsciously feel better and maybe less prone to being ill.
3. Never self-medicate - always consult a doctor
4. Talk it over with your instructor; don't hide it - there are many more people with the same problem. If your instructor is unsympathetic, or unwilling to help, ask for a change. You may find that the older and greyer instructors are better at helping with this.
Lots of luck - keep the faith - it will be worth it