Bad itch in second trimester

Sarah

I have been getting really itchy this past week, and last night it got so bad I broke out in hives on my back. I get itchy around my feet and ankles and wrists too which worries me that I may have Cholestasis. I already called my dr about the hives and she said to watch what I eat. But I’m just wondering if this is totally normal or should I demand blood tests for Cholestasis?