Military Drug test question?

[Jordan B]

I had severe back pain after PT one day and went home that night and couldn't fall asleep. My wife is prescribed to Percocet, so I took one to help me fall asleep. The next day I went to sick call in the morning and told them about my back pain. They examined me and prescribed me to Tramadol and Flexeril. I didn't mention to the doctor that I had taken percocet the night prior because I was scared of getting in trouble for it. I only took the percocet because I know what it does and I needed to do something to help me sleep. A few days ago Approx. 2 days after I had taken the percocet we were drug tested. I'm trying to figure out if the percocet will come up in the drug test the same as the flexeril and tramadol or will it come up as something different. I just need to know this, so if it does come up. I could take precautions before hand by telling my doctor there so he can have it documented so I won't get in trouble if possible. Hopefully the percocet won't come up at all. that is what I am hoping for. I still have the scripts for the other drugs.