I was cleaning the car on saturday when I bent down to clean inside the drivers seat. I put my head under the steering wheel and clean the carpet. As I was about take my head out, I accidently bump and sorta stab my head with the dull metal stick used to move the steering wheel up and down. At the moment I got a quick strong headache but I just took it as a mild pain for the hit. Two days later, a strong headache came about on the left side where I had hit my head and as rub my head I found a small lump on the side of my head about the back of my ear. That night, I could not lay on my side because it was even painful to brush my hair. The next day, the lump became a little bigger and more sore to the touch. Today weds, four days after; I still have the lump (even though its smaller) and a horrible headache. Should I head to the doctors to have them do a xray or something? I have being taking 800mg ibuprofen to improve the pain but helps very little so far.