I have a tooth that gets infected and hurts on and off for years now. Its a molar way in the back. Actually theres only a shell of a tooth left with roots. it's been breaking off for years. I have no money or insurance to go to a dentist or doctor to have it pulled or checked. Lately its getting worse. I feel light headed and dizzy. Its swollen and throbbing. My head hurts through one of my eyes. It hurts to swallow. Glands are somewhat swollen also. My neck is stiff and hurts a lot. Also I have pain in my arms and hands. Its possible that I have rheumatoid arthritis, although it hasn't been diagnosed yet. Can't afford to see a doctor. I have heart problems also. Could any of this be caused by my infected tooth and / or can it be dangerous? Can a tooth infection if left long enough kill someone?