Going through the motions

For some reason, I've been feeling rather strange lately and I'm slightly disoriented. Like awhile ago when Sweety asked me out and then I had to tell him I couldn't because I was having personal problems. More like medical problems. There's something wrong with the way my brain is functioning of late. My regular actions are fine, walking, typing, breathing, masticating, I can do all of them the way I used to. But it feels like I'm going through the motions. "Nothing here is real, nothing here is right ... nothing seems to penetrate my heart ... will I stay this way forever, sleepwalk through my life's endeavour ... I can't even see if this is really me, and I just wanna be alive." And there's this thing where I kinda black out. But nothing goes black. I used to have them every so often, but they were really quick and I barely noticed them. But these are becoming several seconds long. People can be talking to me and all of a sudden I have no idea if they're speaking English or not. You can tell how annoying this must be in French class. It's like a short circuit. I don't even know who I am or where I am. My brain just stops working for a few moments. I hope it's just stress. Cause then that means I'm not crazy or dying.
(EDIT: Sweety made a good point when I was telling him about this. He said "Like you're on autopilot?". And I was thinking "Oh my god, how did you know?!")
It's like there's this zombie that acts like me in my place. There's only one thing I can feel strongly about. And can you guess what that is? Red Delicious.