Bumped my head yesterday and still in pain?

Yesterday I stood up and hit my head really hard in the process. Everything went black for like a half a second and I was totally delusional for a minute after. I felt fine other than pain in the area. Today I woke up and have been dizzy all day and feeling kind of weak and felt nascious on and off. There's still stabbing pains in the spot I hit and I also keep feeling numb in that area. Should I see a doctor or am I going to be fine?
Updates
+1 y
Thank you guys lots
Bumped my head yesterday and still in pain?
Post Opinion