Girl's Behavior

I woke up in the night and saw my girlfriend levitating above our bed, what should I do?

I've never seen this before, it was scary!
The duvet was up in the air with her. When she came down she woke up and thought I'd nudged her I just could not speak. She nudged me back and went back to sleep.
I wasn't able to sleep the whole night watching her to see if it would happen again. It didn't.
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Something happened this morning that woke us up. The metal candle cover that keeps the flame from jiggling about was on top of a glass lid and just fell off! Girlfriend didn't think anything of it but I'm afraid there's something here
I woke up in the night and saw my girlfriend levitating above our bed, what should I do?
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