I took a drug test today for the army. I was supposed to go join tomorrow where they give you a real drug test. The last time I have been near pot was about 2 months ago. Before new years. For some reason I failed today. Im about 210 lbs, ive been doing nothing but drinking water and working out for the past month. Any idea why it would still be in my system? I smoked everyday for about 6 months before I quit.