After going back and being poked and prodded for tests and the doctor coming in and looking her over they finally igured out what was wrong with Anna. Dehydration. For some reason her body didn't absorb the water she'd been drinking as a side effect to the birth control she'd started taking. Whoopie for that.
After a quick IV to get some fluids into her the doctor let them go, telling Anna that she needed to get plenty of rest and be on a liquid only diet until better. He also gave her some pills to help and scheduled her another appointment to come back.
Walking with Harry to go check out she sighed, "Ryder gets out of preschool in twenty minutes."