Although drugs may have contributed to his feelings, I think this is more along the lines of anxiety and (as armx phrased it) some sort of panic disorder. I know that he suffers from it off and on, and this really doesn't ring to me as any sort of bad trip or aftershcok of abuse (and I would know) so much as a universal feeling an modern anxiety and day-to-day complications of life.
Although drugs may have contributed to his feelings, I think this is more along the lines of anxiety and (as armx phrased it) some sort of panic disorder. I know that he suffers from it off and on, and this really doesn't ring to me as any sort of bad trip or aftershcok of abuse (and I would know) so much as a universal feeling an modern anxiety and day-to-day complications of life.