Headache, Nausea, Unbalanced After Being Attacked. Suggestions?

Hi, my names kayleigh. Recently I ended up getting attacked on a night in town. I felt fine the next day. Just slight scratches bumped head and split lip. Im not sure if it has anything to do wih it, but the last few days i ve had a dull headache and today things feel alot worse... Nausia, I feel unbalanced and in another world I stood up from my desk at work today and felt like a was going to pass out which made me more frightened. I feel very tired and dizzy . .and feel the need to lie down all the time. I m 20 years old with good health. I had mild panic attacks a couple of years ago, that soon went when i cut all caffiene. Any suggestions as how to feel better/what it may be. And i ll be grateful as i feel ever so disorientated :(