I’m not going to say you been in SF but you clearly haven’t walked through the tenderloin and probably not spent a lot of time around people that partake in harder drugs on regular basis. Yes it doesn’t match the clinical description, but that’s because the clinical description wasn’t written by someone who works in the heavily drug ridden areas. More likely by someone who probably only dealt with hard drug users once or twice on their ED rotation during residency
Possibly, but I've also seen white color workers with steady jobs and nice houses have a psychotic breaks because of heavy meth use. So perhaps it not all survival stress and the drugs have some affect as well.