 [ Symptoms ] i did not believe the second hand smoke showed positive in a drug screen does it or not  my adult grandson is staying with me at this time he does smoke pot i have gotten high from only his second hand smoke by high i mean i fell asleep in my recliner i have chronic pain and am never without pain he smoked in same room for two days and i had no pain since i can ever remember it did not show on a ua it has been 8+ years since i actually smoked any pot is there a chance i could show positive even though i do not smoke pot [ Disease ] it depends on how much came in to your body if you were breathing the smoke even a little bit you are technically smoking it or breathing it anyway if it was enough to give you a relief from your pain then it could possibly show up on a test it could easily be that the small amount you got from second hand smoke was enough to help you but not enough to show on the ua but i would advise caution if you have to go through those a lot