NewMumJoy - I had a plugged duct that I really struggled to clear in the first few weeks. One thing that I think really helped was positioning the baby so that his chin was over the duct (or lined up with it). This was awkward because the plug was on the top of the breast, at an 11 o'clock position! I ended up sidelaying but with the baby upside down so I had my face in his diaper :) After a few sessions like that, the duct was much better.
LilyTiger - If you're worried about the green poop, have you looked up foremilk/hindmilk imbalance? If it's frothy, that might be it. If it looks normal seedy, just green, it might be nothing. Armie has had a few green diapers too, and no other issues.
AFM, I wish I could get this leaking under control! It's outrageous. If I hear him cry, I soak through the pad, the bra and the shirt very quickly. Or the side that isn't nursing soaks through. Or I just randomly drip/squirt in between getting out of the shower and getting dressed... etc. I also am still dealing with his shallow latch, but I think that's getting better.