How to get rid of this disgusting odor?

Everytime I walk into my room there's this disgusting smell. I can't even explain it. But I want to know a way to get rid of it? I haven't found where it's coming from. But I cleaned my room top to bottom. I tryed febreze, didn't work. Everytime I light a candle, it lasts for about an hour then the odor comes back. I'm going shopping tomorrow, is there anything I should pick up to eliminate the odor completely? and this may sound gross but the smell is almost like the smell of a lubricant. and NO I've NEVER had in this room.