frankly, i am a bit schizoid. i can feel it. just yesterday morning,my voice change when i was ordering food from auntie. it's not just change of pitch but really like a different person's tone. I was also taken aback later howcome my voice become like that. the funny thing is that i dun hear voices,that's why i always thought that maybe i am normal or stressed out. this is one of the symptoms that i can deduce.