Do I have a concussion?

I was in the kitchen and banged my head on the pointy end of the cabinet. It didn't bleed at all, my head still occaisionally hurts, I have a slight headache, I have a stomachache but I have an anxiety disorder and I'm a hypochondriac so I would. I've felt a little "spacy" for the past 15 mins, but I've been able to answer all questions and I chexked fine on the pupil test. I can remember everything from yesterday and today. So should I go in? Any help will be greatly appreciated!