Boa never comes out of hide

[sdiamond808]

My boa is in her hide 24/7. She eats fine and is easy to handle, but never comes out. I set up a nest cam to see if she was coming out at night, and she doesnt. Sometimes she likes her head out but that's about it. My main concern is that she never goes to the water bowl. I keep it humid and have misters. Is that enough to keep her hydrated? She just coils up in her cave hide all day and night. Should I be concerned?