How do you know when you're addicted?

I take vicodin every once in a while, I don't have a prescription for it so it's hard for me to get, the last time i stole from a friend, i'm really ashamed of this but i just wanted to get high so bad. So I guess I was just wondering how do you know if you're addicted or not? and when does it become a problem? So far it hasn't really interfered with my day to day life, I just do it when i'm feeling low.

I believe if your asking the question, probs already know the answer. On the other side, perhaps you are just searching for an escape and as far as stealing goes, I am sure you will not be burning in hell over taking a little pick-me-up!

When it becomes an obsession!

I would sort of lean towards saying, if you're resorting to stealing that is not the best sign...I mean once and feeling kinda bad about it is one thing, but if it becomes a habit well then the drug is getting in the way of your relationships with people as no one likes to be stolen from.

Just one thing to keep in mind, but I am no expert on addiction.