Okay so I need to talk. Do any of you know anything about health? Or have you experienced this before:

So let's say I've been sitting down for awhile (30+ minutes) and then I get thirsty so I get up to go get a glass of water. But, after about 10-20 feet, my eyes just stop working. I don't know why, they just stop. Everything goes black for a bit. It's never been longer than 25 seconds, but what if I needed to get out of the way of something? I can't see. I don't know what I'm doing.

I don't know. If you've had this problem and found a way to fix it, please tell me.

Okay bye.