While the symptoms are not life-threatening, Evins said they could be very disruptive.
"It impairs people's functions," she said. "Often, it leads people to use more than they want to. Withdrawal symptoms lead people into a cycle of heavier and heavier use that impairs their functioning."
Nearly 7 percent of Americans over the age of 12 report using marijuana, according to 2009 statistics on the U.S. Centers for Disease Control and Prevention website.
For Chris, now 51, being ordered to rehab was a turning point in his life and helped him get through the turmoil of withdrawal.
"It turned out to be the best thing," he said, adding that he has been drug-free since.
His advice to those who are seeking to quit -- even though withdrawal can be a struggle -- is to avoid using marijuana.
"Don't buy any pot," he said. "Have an answer ready if somebody is going to offer it to you."