i don't nor have i ever used any kinds of drugs or alcohol. i have begun to notice i can hardly sleep now too.. i go to bed and lie awake for hours just trying to sleep. i take sleep aids and have tried different types, but so far no luck. i have been getting roughly 4 to 5 hours of sleep every night. it is starting to really take a toll on me. i cannot afford a check up with any kind of doc. home life is fine. and thanks on the tip about the noise canceling headphones. it helps some.