i have taken something for my AD/HD my whole life. I am a l.ocal truck driver and have been driving commercial trucks for 13 years . i have also been randomly drug tested for this long as well. i dont use drugs other than perscribed. I also am a alcoholic and have have not had a drop of alcohol for over 180 days. My last Random drug test came back positive for amphetimines (which is normal) and methamphetimines.. (which has never happened before) . And now i have lost my job cuz of the positive methamphetimine.. why did it come up as meth?? this result will affect my profesional driving career for life... PLEASE HELP