Insane itching

So I can’t stop itching especially at night. All over but especially my hands and feet. I know this is a symptom of Cholestasis but my blood work keeps showing normal 🤷‍♀️ I’m 36 weeks today and I just don’t know what to do I can’t sleep. Benadryl was working but isn’t anymore. Neither are the oatmeal baths 😭