Cannabis users sometimes develop a mild physical addiction, with withdrawal symptoms that can last several weeks. These usually include the jitters, occasional other symptoms, and emotional unease. There have been a few reports of psychotic episodes, but it has not been established that those were due to removal of the chemicals. They may have been due to underlying conditions that were masked or controlled by the drug use. If present, these should be addressed by specialists rather than continuing to self-medicate without medical advice.
What is more difficult is to remain determined to stay off cannabis in a society that is becoming more and more accepting of it. Remember that only you can decide if it is a problem, and other people’s opinions (especially those of other users, who may have a vested interest in your continuing to use because of their own denial) don’t count for much. It’s your mind, and your body. Do what is right for you.
Finally, remember that,regardless of any other issues, use of cannabis is still illegal in most places, for most people. There are many folks serving prison time for relatively small amounts of weed. At present the cannabis issue is not just an matter of opinion, but also of potential life-changing consequences.