This is actually a normal part of how YouTube validates views. Temporarily slowing down or even freezing a video's view count is expected, here are more details about why this happens and how it works: https://goo.gl/S7DIry
So it’s “normal” to lose over 1000+ views on EACH video ? I clicked the link and read that before tweeting you. It says “freeze”, “slow down”, never does it say reduce or decrease by mass amounts. Each one lose more that a thousand after she had them for more than a week! Help!