I am sleepy all the time. i fall asleep without warning, especially when i am driving, trying to read a book, etc. this is happening more than a year.

Narcolepsy: This is a psychiatric/psychologic problem if you are otherwise healthy and urgently needs help to avoid problems for sleeping the you should not.. Also, a more common cause can be sleep apnea-not getting enuf O2 at night. Eep. common in obesity. Tests for this are possible. You don't have to be nuts to check this out w/ a shrink or your practitioner may refer you.