My almost 3 yo ds was playing with oh tonight and fell onto the radiator and bumped his head. He hit the knob/thermostat bit at the end and has a slight graze/cut just behind his ear about an inch long. Only very shallow. It only bled a little - like a graze or small cut would and I held a cold flannel on it for a while. He cried as any kid would when they get hurt then was fine after a few minutes or reading to calm down and just said it's sore. It's a bit of a lump. He seems normal in himself, he's tired because the clocks have changed and it's right before bed time but I don't think that's anything to do with the bump. I'm sure I'm just worrying over nothing but not sure wether to contact our dr tomorrow or if I'm just worrying too much? He's back at nursery in the morning after half term - should I still send him? I worry so much about these things and wanting to keep an eye on him obviously :(