What Causes A Lump Under The Eyebrow After An Injury?

Hi,
After reading the other questions and responses, I believe I have a hemotoma but I thought I would ask to be sure. I got hit in the eyebrow by an object being thrown, and no long after there was a lump right under my eyebrow and a black eye forming. The next day my eyelid closest to eyelashes was black, and the whole eyelid and upset my eye was dark purple. It seems as though the lump has moved down a little, and maybe even got a little bigger. This happened almost a week ago. The black eye had started to fade but isvery much still there. It doesn't hurt too much, but is very sensitive to touch it.
Do I need to go see s doctor?

Thanks!
Vanessa