One night I couldn't sleep so I'm sitting there trying for hours and slowly drifting in and out, it was horrible. Anyway, by the morning I was really tired and dozing off wasn't a problem any more, but I was awoken at one point after a few hours sleep. After being awake for maybe 10 minutes, my lefteye just gave up in a sense. I had a big blind spot right in the middle of my view, so anything I tried to focus on I couldn't. I was pretty worried thinking I went blind all of a sudden, so I was rubbing it a lot, trying anything to desperately get rid of the blind spot. I also couldn't watch a movie because of it and then things seemed blue and fuzzy on the outside of my vision, so I went back to bed to rest again since I was so tired and pretty scared by that point. After maybe 30 mins of resting I opened my eyes again and everything was back to normal. Some suggestions to what caused it were that I was too tired, and jokingly by one, that I have a brain tumour :uhh: What do you think might've caused this? And should I maybe check up on my eye/brain? By the way, my family has no history that I know of with brain tumours, eye problems, or anything like that.