I agree that the symptoms sounds like reflux to me, if she is only 2 weeks old (sorry I can't see your ticker at the moment) and all these things are happenning, I would get to the doctor for some opinions, as to me it sounds like it is getting worse quite quickly which is what happenned with my son.

The one thing I would keep a good eye on is the vomitting, if this persists and becomes forceful and projectile then you should definately get to your doctor, a quite common condition in babies is called pyloric stenosis, and this should be ruled out if the vomiting becomes projectile all the time.

Good luck, like a previous poster said, sometimes you have to go to a doctor or two before they will listen and do something about it.

Where in Perth do you live?