[mangoandmimi]

Really important to check the bottle works every time you refill it, tapping the ball bearing gently should let water out. If the water level didn’t go down it does sound like the mechanism failed so either get a new one or provide a shallow dish of water for now.
Dehydration is really dangerous with hamsters so I would guess those symptoms are linked. But you’ll have to see what she’s like again once she’s definitely hydrated.