How long does it take to get addicted to 5mg oxy? and was wondering how long it would take before i become dependent/addicted to them

That depends on: how many you are taking in the course of a day. Addiction is NOT the same as dependency. Anyone taking even 3 tablets a day for more than a week or so will experience at least mild withdrawal symptoms when they are stopped, but most will not even particularly notice them. Addiction is when you do it more and more, and it helps less and less but causes more and more problems, AND you don't stop.