do i have a concussion?

so today i was biking home and i started feeling real dizzy, then i started noticing it was raining, but i wasnt wet, well, it looked like it was raining, but there was no rain, but it looked so much like it was raining i kept checking.  almost fell off my bike from the dizzies. at dinner i was real angry, then sad, then back to angry. then on my way home i started feeling dizzy and i wanted to vomit and i remembered that i got hit in the head with a hockey stick today.  now im at home with a killer headache trying to stay awake so i can hang up my laundry.  so, do i have a concussion? i think i might, i looked it up, and i had quite a few of the symptoms.actually most of the symptoms. anywaaaaaaay, i looked it up, and i should be able to sleep without dyeing or going comatose. SO, later.