heres the possibilitys it could be

-she has mites. look for little white specks on her, or for little black thing crawling around(espescially around the eyes
-she doesnt feel secure so shes "hiding" in her bowl. if you dont already have this get 2 secure hides on both sides of the cage.(secure meanin she fits with little or no room to spare)
-its too hot in your cage.make sure your temps are about 80-84 on the cool side and 90-92 on the basking sites

BP's never soak in there water bowls unless somethins not right, usually its one of the three bove. i have actually never seen any of my 2 BP's soak in there water bowls.