It all started a month or so ago, when I was sitting in math class. I turned around to pop my back and as I turned, I heard whispers all around me. But the strange thing was that the class was totally quiet (minus the teacher teaching) and the voices sounded just like all my classmates. It was so jumbled up, I couldn't understand each "thought". It lasted about 20 seconds before I turned around because it was so overwhelming to my head.
A couple weeks later, I woke up at 3 am (exactly) and smelled onions, it was such a strong smell. A few minutes later my left wrist started throbbing, like something bit me. But when I woke up the next morning, I couldn't see any marks. Then a few weeks later the same exact thing happened. And while all this is going on, sometimes when I close my eyes (usually when I have a headache) I see these strange faces, that don't look human. It looks as if they are coming closer and closer. And each time it's a different face. This is all really confusing and I have no idea what this is or could be. Any help would be great, I've never had any of these things happen before and if it is something I would like to learn more about it and develop it further. Thanks.