advice please

early this week i had real dark urine that was orange/redish called my ob they had me come in and did blood work for my liver enzymes called back the next day said it was fine just dehydrated drink more water been drinking more water but urine still hasnt changed in color and i started itching so bad last night all over and still cant stop itching today i dont want to call them and torture them has anyone had anything like this happen? im 31 weeks pregnant