Nose bleed and lack of sleep are the only 2 I can think of.

nosebleeds.

pretty addictive stuff. a rehab center would be the best option for quitting.

Sometimes it’s tough to tell. But there are symptoms you can look for. The symptoms of cocaine use can be baffling. At first they may go unnoticed because they are so subtle. As the symptoms of cocaine use grow larger so does the individuals addiction to cocaine. Cocaine symptoms may start off as simple as a normal nosebleed and can become as extreme as cardiac arrest.

The effects of cocaine are immediate, extremely pleasurable, and brief. Cocaine and crack cocaine both produce intense but short-lived euphoria and can make users feel more energetic. Like caffeine, cocaine produces wakefulness and reduces hunger. Psychological effects include feelings of well-being and a grandiose sense of power and ability mixed with anxiety and restlessness. As the drug wears off, these temporary sensations of mastery are replaced by an intense depression, and the drug abuser will then “crash”, becoming lethargic and typically sleeping for several days.

more at web page below

White powder around nose, sniffing, rapid speach, anxious, active, racing heart, top of the world feelings proceed depression when coming down