Hi, about 5 months ago a tooth that is capped starting hurting really bad. For about a whole day it hurt really bad, but then after that day it was fine. Soon after that I started to notice a lump or something over that tooth which then turned more into a bump. Now it seems to have gotten smaller. But it kind of gets hard after I brush my teeth or eat and then othertimes its soft or deflated like a empty blister. It doesn't hurt at all and I never did anything about it because I kept thinking it was going to go away. It worries me a lot because I dont know what it is. I plan on going to the dentist soon, but that still might not be for a couple of more days.