A few hours ago I woke up from a nap, and noticed a lump on the right side of my head. It is a little above where my earlobe ends, and is about a quarter of and inch back. It feels very hard, and doesn't seem to move around if i try to push it in any direction. It so hard that I first thought it was my bone popping outwards. It really doesn't feel like its on my skin but almost like its attached to bone? It doesn't hurt by itself, but if i do press on it I experience some pain. I tried to get the best look at it that I could, and it seemed to be a little red, but I have been poking and pressing it. Im making a doctor's appointment for thursday, and am very worried. Any ideas or similar experiences?