what's wrong with me?

I don't know whats happened to me. I'm always anxious. Like a near constant underlying sense of worry, which I can't precisely figure out why it's there. I never watch T.V anymore, I try to, but I never get past half an episode. I don't feel like reading, searching the internet or just anything. The only think I feel like doing is talk to him. I feel pathetic about it and it scares me so much, but is it really possibly for him to make me change this much? I feel so emotionally different but I don't know how. My motivation for everything is just lacking, and I just want everything to be over. Everything feels at disarray and I don't know how to set it right. I just don't want to do anything. I don't want to do a video, i don't want to do yearbook, I don't want to do lipsynching, or job apps, or uni apps, or any more sacs. I just can't concentrate on anything anymore and I honestly think i could just sit on my bed for hours doing nothing but staring and thinking. I don't know how much I'll have to push to make things okay again, or even worse if they can be okay again before exams come round.