This happened to me once. It was the only time in my life that I ever mixed liquor and beer while having a few drinks.

The next morning, I got sick about 3 times. Didn't really notice anything until I got to work the next day. A co-worker of mine noticed and called her boyfriend who worked for an ophthalmologist. He said it looks nasty, but it needs to heal on its own.

He said it looks bad for about a week, do not mess with your eyes, no rubbing, no contacts, no eye drops. Also he said it might look worse before it looks better, but that is normal.

They said I was just straining too hard when I was getting sick (throwing up).

However, if you weren't in a situation like mine, then I would definitely agree that you might want to have your blood pressure checked. Personally, I don't have problems with blood pressure, so that was definitely not the cause of my problem.

I hope you feel better soon!