Haha my buddy ate a gram of black Afghani back in the day. About 2 hours later he started vomitting, and it was the weirdest vomit I have ever seen.....like this thick brown foam (think like the kind of foam you sleep on)....good times lol.
About this other thing though. I read it in the "news" (UK Mirror) and my first thought was "crock of shit" (I smoke a 1/4oz a day sometimes), my second thought was "pesticides" and my third thought was these people may have a health condition exacerbated but not "caused" by weed.