If you fly on the dash I know exactly where you are coming from. If the problem is turbulence related though, its not going to get much better over the next couple of months. August and September I have found to be the worst with really strong winds. HOWEVER, once that passes its actually pretty good, you will almost everyday encounter turbulence on the dash though.
Like cloud nine stated only a few people have ever left due to air sickness being an on-going problem. The first few months are the hardest, stick it out though and you will really enjoy it.