Doctors?

I woke up this morning with a bloodshot red eye.
Now I don't smoke, although I did drink a little bit last night. (Vodka and coke, 2* Galliano and coke, 2 beers)
But I don't think that's what caused it.

I slept 8 hours last night in my own bed, and since then have not been punch in teh eye or anything.

Anybody know what's up?