Are Intense Itching And Nausea Normal During Pregnancy?

I am 33 weeks pregnant, I started to get intense itching and nausea last Thursday , I called my dr on Saturday as it was getting worse, they had me come in first thing Monday and did a lft test which came back normal, the bile acid test hasn t come back yet. My dr says that if the lft came back normal I don t have to worry about cholastatis , it s just normal pregnany itch, and told me to try Zyrtec for antihistamine, I took that the itching has gotten worse, I called today to see if bile acid test came back, not yet, she said its fine try Benadryl , I took that, the itching is getting worse and worse, stated on hands and feet, now all over, no rash anywhere. I feel extremely tired and naseous, they told me to come back for my regular two week appointment, which will put me at 25 weeks, my concern is that from the research I have done, the bloodwork can come back normal as well as the bile test for some time before the build up is enough to change the lft test, or the bile acid test.i feel like that it takes a week to get the bile acid test back and if they retest in two weeks it put me too close to that 37 week danger point of still birth. I don t know what to do, I feel like there is something wrong and they aren t going to catch it till its too late.