Having stuff and wondering about it

I get a fairly intense amount of visual snow constantly. But that's not the only thing. I always end up seeing patterns in the static, whether it be faces or objects. I get strong afterimages, but even just if I think about a shape or object for a while I'll get an afterimage, which doesn't really make sense to me. When I look at things it feels like they're moving, so vivid to the point where I look at the floor and my legs tense up because it feels like the floor is waving up and down. It gets really hard for me to focus my eyes sometimes, especially when there are small patterns (thin lines, school carpet, plastic etchings, etc). I get a lot of floaters too. I didn't know this wasn't normal until I was talking about it with my friend a week ago.