Good for you on getting clean!!! Cold turkey? You are brave, and strong!
As for your inquiry: Being a female, I do not experience exactly as you do, but correct me if I'm wrong, premature ejaculation is just orgasming way to early without much stimulation. If I am correct, I got the same thing too after quitting
MS Contin cold turkey. Opiates dull our sensitivity to pain and dull our sensitivity "down there." Sex drive often diminishes also when one abuses opiates. You know, everything is kind of "slowed down." After the drugs are out of your body, especially if one has been using for a long time, sex drive and sex organs "wake up!" It's like they are on overload! I remember orgasming very early and many times actually. It was a lot of fun.

There is a lot of stigma attached to a man orgasming fast. I would not even worry if you came before he even got out of your pants! I think it's normal for the first couple weeks after quitting heavy opiate abuse. If it lasts longer than that I might consider seeing a doctor. I hope this helps. If I have what you are experiencing all wrong, I apologize.