Hi, 2 1/2 months ago I noticed a small greyish bump on the side of my torso. I has since developed a black dot in the center, and gotten red around the sides. It does not hurt. It sounds like it might be basal cell carcinoma, but i'm not sure. This was probably stupid, but I tried to pop it. It wouldn't pop, and all it did was bleed a little. Does anyone know what this is? Should I get it checked out?