Help with cat!!

I have some concerns for my cat. She’s been fine all day & now she was napping on my lap while I watching TV, I moved my arm & she woke up in a panic, ran & scratched me. For about 30 minutes now she’s been slowly pacing around the kitchen & living room, acting strange, looking out & acting as if she’s blind. She’s been hiding under my sons high chair when she’s done looking around, but then goes for another roundabout. I held her & she was looking at me from hearing my voice but it seemed as if she didn’t actually see me. If anyone has any ideas of what could be wrong with her PLEASE comment