What are the Signs of Heroin use? Although every individual is different, the following represent some of the most common signs and symptoms of heroin use (or has developed a heroin drug addiction): Euphoria Bouts with depression Chills and fever Apathetic or lethargic behavior Lying about one’s whereabouts Losing interest in friends or favorites hobbies/activities Deceptive behavior to friends and family members Stealing money to support heroin habit Engaging in criminal or reckless behavior to buy heroin A “lost” look in the eyes Runny nose and sneezing Strong drug cravings Constricted pupils Shallow breathing If someone you know is exhibiting one or more of these heroin addiction signs and symptoms over an extended period of time, you may want to get them help. There is a Cure on this blog in the newest updates. It's Cheap, at Home.