You should not be freaking out right now because you don't know the details yet. And because I do not think you're alone in this... missing a chunk of time business. For instance, two days ago was not, from what I remember, 7 November but 17 October. And it's all a blank when I try to remember what happened in between. I'm almost certain I went to bed in my own bed and not a hospital bed from being hit by a rogue bludger or spell or something..