I have had tooth pain for a couple weeks. My pain varies throughout the day, but I have some form of discomfort for most of the day. The tooth is gray in color and is sensitive to even room temperature water. I have pain in my jaw, travelling all the way to my chin, and for some reason my collar bone on that side hurts as well. My question is: what are the warning signs for an infection that has spread and how dangerous could this be for my health if I don t get treatment soon?