The fact that you are having trouble with logical stuff and it not making sense to you can be explained by something known as poverty of content. Trouble expressing feelings/emotions with people with schizophrenia is not uncommon. Some severe schizophrenics (usually those with disorganized schizophrenics) will do something known as neologisms, this is taking existing words and putting them together to make a new word with a new meaning. They do this because they have trouble finding words that can actually explain the way that they are feeling. Having deluisons of persecution is also something that is common... though since you have symptoms that are sterotypical of various forms of schizophrenia i would assume that you have undifferentiated schizophrenia. Im sorry that you are feeling so uncomfortable lately... It must be hard to feel that people are always watching you...

I hope you feel better soon,
Jason