I hit my forehead when closing a large boot door, on a Mercedez Viano people carrier. I pulled the boot down with much force, as it is hard to shut, and it hit my forehead and nose on the way down. I had a small cut to my forehead, and a deep cut to the bridge of my nose. The cut on my forehead stopped very soon after, the cut to my nose took a little longer. I had a very large bump come up on my forehead almost immediatly, and my hands were shaking, but think this was just the shock. The shaking stopped about 20mins after, I immediatly applied ice, but the swelling did not go down at all on my forehead. Approx 1 hour after the incident, I got a headache , but this was relieved after taking painkillers. The next day the swelling had gone down slightly, but since then the swelling has not gone down anymore. Today is 2 days from the incident, it happend about midday on Monday, and the swelling is just the same, I have a dull headache, which feels like it is behind my eyes. There is no bruising showing on the bump at all, it is just swollen, and very sore to touch.Do I need to worry ?