Vibrates Randomly But No Notifications.

For some reason this past couple weeks my watch has woken me up countless times during the night to these series of 6 super fast vibrations (while on the charging dock btw) but there are no notifications on my phone or watch. I figured it might have something to do with bluetooth so i did a test but it only vibrates twice when reconnecting to bluetooth on my phone. Has anybody else had this issue and know how to resolve it?
1st gen moto 360 btw, and I'm not even sure if i have warranty left on this


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