I'm worried about my eye.?

Tuesday night I got hit in the temple/brow bone region with a small, plastic disco ball. Don't ask how, ha ha. Anyway, it hit fairly hard and my vision went screwy for a few seconds. It then swelled a little and it looked like a had a "bug bite" type bump where it had initially hit the hardest. I woke up the next day with the swelling gone, but still pain and slight bruising. Throughout the following days, I suffered head aches and slight dizziness. Upon feeling out the area, I realized I have a weird, hard (bone-like) bump where the "bug bite" spot had been. It is tender to the touch. I had my mom feel it (she's a nurse) and she said I'll be fine. But the headaches are beginning to get worse...and I have stumbled a few times due to dizziness.