I can't concentrate.

So, tonight i can't concentrate at all. I dont know why. I dont know what is wrong with. I am really hoping that it is just all the stress built up. I really hope that it is nothing serious. I keep on forgetting the simplest things, and i keep on forgetting how to spell the simplest words. I also feel like absolutely nothing is making any sense what so ever. I am sick and tired of feeling this way. This has been happening sense last night. And its gotten worse. All day today i have been feeling like i cant think and it kind of scares me. I also cant see good i feel like i am looking through a tunnel just like i do everyday. It is very scary to me. I dont know what to do when i feel this way. I can just barely think.
My vision is very very cloudy and foggy and it's weird and freaks me out. I just can't see straight. It's amazing that i can actually type all of this out with how my head feels. My head feels heavy, and its frustrating because i cant concentrate or focus on ANYTHING. 
I am trying to tell myself that this is just anxiety and it is not a stroke and that i dont need to go to the ER, but i still keep thinking i do, and that it is a stroke. It's frustrating and makes me EXTREMELY anxious. I really hope that this goes away. I actually feel confused. And it's a terrible feeling. I wish i knew why i felt this way. 
I also feel like i cant physically move even though i can move enough to type this. And that feeling really freaks me out. And when i go to type the words, i feel like my brain freezes up and that is also scary. I hate it with a passion. I feel like i am in a fog. It's terrible.
Maybe its because of the type of morning i had. I had a terrible morning and i think it my day just got worse from there. I dont know. I just really hope that this goes away soon. I feel like im dying.