i am a big pothead, i sell grow make hash, all that, i am a junior in highschool and i went to a party last friday night and got drunk and high, i went home while i was still high and my friend charly went with me, he was also high, my mom suspected us and asked us if we were high we said no but she didnt buy it, the next morning after charly left she tolod me that she knew drugs were at the party and she went up to walgreens and bought some drug testers, she told she was either testing me or i was leaving the house, so i let her test me, the first strip said negative, i couldnt believe it, niether could she, so she made me take 3 more tests and they all said negative, she was really happy and shes giving memore privelidges, deep down i know i should tell her the truth, and plus, why wont i test positive? last tuesday i bought a drug test and tried my self and i still tested negative? is this normal? and should i tell my mom the truth?