Welcome to the world of migraines!
I had one today. And yesterday. And Monday. And I'm out of meds. Guess what scotch and red wine does!
Anyway, go see a doctor. It could be migraines, but a fuzzy vision or such in your eye can be migraines OR a brain tumor. Serious, go get a MRI if it persists.
If it's a migraine, and you've never had them before, welcome to the club.
Mine first went like this: My vision in my left eye slowly degraded over a week. I went from a small spot to about 75% of my vision obscured in my left eye. This made me, well, panic. Except the eye doctor saw nothing and the MRI and CT scan were clean. Then, on a Monday night, I got the worst headache I have ever had. Like somebody drilling a hole in my head. It hurt so much I was writhing on my bed like I was trying to get away from it. Honostly, if I could've made it the 15 feet to my 92FS that would've been it. It went on forever, and then stopped. Next day I had migraine medication.
The meds will fix it. Unless you run out. There's a small flashing spot over my left eye RIGHT NOW. goddamnit.
Cliff notes: Migraine. Maybe. Go see a doc.