http://www.addictions.com/marijuana/10-common-marijuana-addiction-symptoms/ said:
1. Tolerance
The very first of many marijuana addiction symptoms that becomes evident is tolerance. When an individual smokes pot, at first it may only take a few puffs and he or she will feel the effects. After a couple of times of using the drug, it will take more and more in order to feel those same effects. In time, the user smokes more pot, more often and feels less of the effectsthis is tolerance and its also the first real sign of marijuana addiction.
2. Withdrawal
Anytime there is a physical drug addiction present, withdrawal symptoms are a possibility. If you begin to experience symptoms of marijuana withdrawal when you dont smoke pot, such as insomnia, anxiety or a loss of appetite, then theres a very good chance that addiction has already set in. Physically, these symptoms will subside in about two weeks if you quit smoking pot all together.
3. Loss of Control Over Marijuana Use
If you have tried to cut back, tried to smoke less and even told yourself or someone else that you wouldnt smoke so much pot and then later went against your intentionsthis could be a sign of marijuana addiction. Symptoms such as a loss of control over intended use are common in many types of addiction, including addiction to weed.
4. Spending too much time Getting High
Are you or is someone you love spending the majority of their time getting high? One of the more common marijuana addiction symptoms focuses on the amount of time that is spent getting high. If you are taking time away from other activities, spending time away from family or friends or otherwise spending time getting high rather than doing things that you once loved, theres a good chance that addiction is a problem in your life.
5. Choosing Friendships based on Drug Activity
Do you choose your friends based on whether or not they smoke pot? Are you spending less time with friends who dont smoke weed and more time with those who do? As marijuana addiction progresses and the real damage begins to set in you may realize that you are spending more time trying to hang out around others who take part in similar drug use activity and less time around those who (though probably would have better relationships with you) do not do drugs.
6. Smoking Weed to Relax
At the end of the day, do you have to smoke a joint in order to calm down? If you or a loved one turns to weed consistently as a means of relaxation and seemingly cannot relax without pot, there could be a more prevalent problem present with marijuana addiction. Symptoms such as this often persist and, contrary to common belief, marijuana does not actually relax, sooth or calm. In fact, the Office of National Drug Control Policy confirms that marijuana does not promote relaxation but actually increases violent crimes.
7. Lack of Responsibility
Do you stop taking care of your daily responsibilities when you smoke pot? If smoking weed has interrupted your ability to handle daily activities such as going to school or performing well at work, there may be a bigger problem. Another one of the more common marijuana addiction symptoms relates to the lack of productivity or responsibility that comes when an individual focuses too much attention on smoking pot and not enough attention on attending to regular responsibilities.
8. Getting High Despite Known Consequences
Have you suffered consequences as a result of getting high? If you have already suffered consequences and you know very well that smoking pot will continue to cause problems in your life, yet you still smoke weed anyway, you might be addicted. Marijuana addiction can lead you to do things that you otherwise may not do, such as getting high despite the fact that you know it is causing problems in your life.
9. Smoking Pot to Escape Reality
Marijuana use as a means of escaping reality is a sure sign of addiction. If you feel like you have to smoke pot in order to cope with work, school, home or your family, addiction is likely an issue in your life. Drugs should never be used as a method of escaping reality or to cover up what is really going on.
10. Trying to Cut DownAnd Failing
Finally, one of the well-known marijuana addiction symptoms is making attempts to cut down on the level of marijuana usage and failing. If you lie to yourself about the amount of pot you will consume or you have told other people such as those you love that you will not smoke so much and then you still do, addiction is a problem.