[GoblinMason (Craig)]

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in general I think this happens when you're stressed out.

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I did have finals this week and was stressed; although it happened last night and I was done. Maybe just the leftover stress?

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exercise might help, even though it didn't happen in my case.

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I exercise regularly anyway.

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you could try to get medication, but it can make you just as groggy.

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I did try Tylenol PM one night which put me out, but I woke up 4hours later feeling very groggy and couldn't get back to sleep.