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Well, it must be really hard for you and your family to go through all this , but i would suggest that, at this moment all of you should stick together and provide full support and care to your grandson , as from the symptoms you have mentioned , it appears that currently, your grandson is in a state of Mania, which is one of the 2 extremes of mood seen in Bipolar Disorder, the other being depression.
Not holding a job , abrupt swinging of mood , being aggressive , disobedient, hurtful towards his mother and near and dear ones, wandering aimlessly, venturing out without giving any information to you people and probably enjoying all night long with friends , saying words like ---i command you to his mother , which refer to ideas of grandiosity , often seen in manic people, all these features are suggestive of a full blown state of Mania , which i believe needs prompt Attention, in the form of immediate meeting with a psychiatrist and admission in a Psychiatric In Patient Department of a Hospital or Psychiatry Nursing Home.
And , i also think that he definitely has not been taking his quota of drugs that was prescribed to him , and as a result he has entered intto mania. This state of his should not be taXXXXX XXXXXghtly and should not be misjudged as bad behaviour or temper tantrum , as in mania , a person has a feeling of extreme degree of self confidence, feels superior than others, has extreme degree of happiness which is interrupted by episodes of low mood , a person becomes hypersexual, that is there is increase in one's libido( sexual drive), may become disinhibited ( i.e is becoming disrespectful to seniors and elders, snapping or even raising hand over elders, which otherwise one would normally not do) , often manics become spendthrifts and spend lot of money over useless articles and take lousy , unintelligent important career or life decisions.
Above mentioned are some of the features of a Manic Episode in Bipolar Disorder, your grandson need not have all the above features to be termed as manic , as there are variants in this mania , but as it appears your Grandson is surely in Mania, and i would suggest you to Fix an appointment with a Psychiatrist as early as possible and discuss with him/her the possibility of his admission to a Psychiatric In Patient Department , while getting him started on Anti psychotics and mood stabilizers.
I hope you heed my Advise , and take action in this regard as early as possible as we would not want things to get out of control.
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