Annie you would have to stay lit 24/7 to get the illness to which they refer!! Before bed for insomnia and pain is not enough !! And that illness only effects about 10-12% of the habitual stoners that do not know what the word moderation means!!
Actually, that's not true. Common misconception, especially one perpetuated by the folks who want to legalize weed because it fixes EVERYTHING (lol). Cannibinoid hyperemesis syndrome is a whole helluva lot more common than you might think. I know, because I've seen it - a lot.