Bloodshot eye after vomiting and hitting head

I am 19, female. Wednesday just passed I was round a friends and had a fair bit to drink. I was told I fell out of bed and hit my head on a door frame. There is no mark when I hit which is on my left eyebrow and between my hair line and eyebrow above my left eye. Yesterday, (Friday) I now have a really bad bloodshot eye. There is a large patch around 1cm in the top left corner of my eye, and this morning (saturday) there is a small patch when I look up.
I am getting pains in my eye, my head where I hit, and other places of my head. Also I feel weak and very weird sensations, feels dizzy but not to that extent. I also had a nose bleed the night (wednesday) before threw up, which came all of a sudden.
I then threw up around 4 times that night, twice the next day as I stopped eating and drinking as anything I had came straight back up. I decided at 11:30 Thursday night to have a drink, and 1 hour later it came back up.
I am now able to eat and drink while keeping it down. But am eating light.
Should I go and see a doctor?
Kind Reguards.