I got smacked on my for head 2 times I feel fine but should I be worried I felt litte dizzy but no now and if it was bleeding will it go away onit own?

Head trauma. Depends on how long ago and how hard. Internal bleeding will not get better on its own, but you won't have to wonder if you are having it as you would not be able to write this question if you did. If you still have concern you should have it evaluated.