I had similar problem after removing a lower wisdom tooth (the process took almost 3 hours...Painful). After 2 weeks, it was still hurting ( thought it was normal since the lengthy procedure was hard on the gums). The dentist had informed me that if dry socket, it would hurt I would have bad breath. 2 weeks later, the pain was there, but no bad breath (later when I went to the dentist, he mentioned that bad breath was due to food getting stuck in the socket, but I was cleaning sockets out well, so only experienced the pain, swelling and I could feel my blood veins swollen as they delivered high bloodflow to combact the bacteria).
Anyways, when I went back to dentist, he confirmed the dry socket, and put some medicated fibre like substance that also has antibiotics and painkillers to plug up the socket. After about a couple of days, the pain stopped.
Just my experience...If it helps in anyway.