This is my first day admitting my problem and calling out for help. I've been abusing pain killers for the past year. Not a certain type but just any kind I can get a hold of. I dont really like muscle relaxers though. Those make me sleep too much. But I love the feeling that pain killers give me. And I can't go a day without them. I spend too much money on them since I buy them off the streets. I'm a very respected engineer and I shouldn't be doing this to my self and ruining my life. No one knows about my problem not even my girlfriend and I want to quit before anyone finds out. Can anyone give me some advice?

Since you figured out that you are addicted, I think you should stop like today, right now because the longer  you wait, it's going to get harder to quit.  It'd be a good idea to tell your girlfriend because it can only benefit you, I can't imagine starting my recovery all by myself.  Good luck, let me know how things are going.

you need someone to help you and support you you cant do it on your own. And stop from now. Dont wait longer.