Hi Ladyluck,
Until recently I just completed over 2years flying on the DH8 with QFLINK. I am very fortunate as I never feel sick on any a/c or rollercoasters etc. My advice to you though after working with some people who have felt airsick is to make sure you eat solid meals and not do what many girls do and eat light salads at work. I personally find that salad can make me a bit dizzy in the air and I don't think it is a substantial meal to keep you going with the workload of a Dash 8 flight attendant.
When you first start flying on the Dash8 the service itself can make you dizzy enough without even worrying about the effects of flying regional in turboprop. I am sure that once you start to "get the hang of it" and feel more comfortable your nerves will settle down a bit and you will get used to the effects of flying - it does take your body a couple of weeks to get used to the effects.
Good Luck out there with Eastern. Regional flying is extremly rewarding and if you get to fly with my good friend " Cloud 9 - the blonde bombshell " I am sure she will give you some good tips - give her a kiss from me!
QFSKY