Two days ago by mistake my head hit onto a steel pipe very hard. No bleeding, swelling and bruising. I didn't faint or immediately after i got hit. But after a day i felt bit nauseas. Not sure if that could be because of the hit. I feel a bit discomfort on the hit area. But everytime when I touch the area where I got hit, it pains. I got neck pain today. I am bit worried. Should I visit a doctor and go for a scan? Kindly advise