Blood in my eye: Is this normal?

I woke up in the middle of the night feeling a sharp, uncomfortable pain in my eye, but I didn't think much of it at the time and just went back to sleep. This morning, however, I realized my entire eye is filled with blood, and there is this constant throbbing sensation. I was hoping it would just clear up on its own, but it hasn't budged. Aside from a mild headache, I don't have any other symptoms. Does anyone know what might be causing this? Thanks in advance for any insight.

Could be conjunctivitis? 🤷
Go see a doctor ASAP—and for heaven's sake, stop touching your eye.

It’s likely just a broken capillary in your eye, which usually clears up on its own without much fuss, though since you mentioned having a headache, it might be a smart move to get your blood pressure checked just to be safe.