A member asked:

What causes a complete personality change from quiet and docile to extremely talkative and energetic?

A doctor has provided 1 answer
Dr. Pamela Pappas answered

Specializes in Psychiatry

Possibilities: One possibility is some type of drug intoxication, such as Cocaine or other amphetamine-like substance. In some, alcohol can dis-inhibit talkativeness too. The person may also have bipolar disorder and be in a manic episode. Such people talk quickly and loquaciously, are very energetic, and can sometimes be very difficult to follow. They can switch from elated and jovial, to irritable too.

Answered 10/22/2015

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