I've been hearing strange noises, sometimes it sounds like music, sometimes it's like a "white noise" or a rhythmic tone or pulse, but the sound doesn't originate from any source. I see strange things in the shadows, out of the corner of my eye, and I get strange episodes of paranoia, but it usually only happens during night time. I'm 23, in fair health, I don't do drugs, I only drink on special occasions, and in moderation, and this has been bothering me for about two years, but it's never been this bad before. It started off very light, no fear or anything, just the rhythmic noises, and I figured it was just someone playing a radio a little loud, or my brain was just trying to entertain itself or something. The fear and seeing things started to set in later, I usually see things like feral snarling dogs, or some strange humanoid thing walking around around in the shadows, or out of the corner of my eye, and I just panic, and I can't move, or speak, or do anything, but it usually only happens at night time. what's going on? Is it a real problem? And where do I go to fix it?