What did it look like? I've got the puffy nipples thing going on but it doesn't look like the way gyno usually looks. Although since I'm still young it should probably go away. I hope.
Puffy nipples isn't always actual gyno - could just be excess bodyfat which you can get rid of with diet and cardio over time. Maybe take some Nolvadex to stop the itching or better still some arimidex or aromasin to reduce estrogen levels. You might need to get blood work done to see where you are with that.
My gyno was 9oz of hardened breast tissue (that's how much the surgeon told me he removed) underneath the left nipple - it was noticeable whenever I took my shirt off and it used to permanently itch. It looked like a very small breast is probably the best way to describe it. Don't have any pics because I was always too self-conscious to have my photo taken with my shirt off back then. The right side was completely unaffected (no hardened tissue at all) and whilst in surgery they only performed a small amount of liposuction on it to even it up with the bad left side.
Since the surgery in 2006 it has come back slightly and there's some hardened tissue maybe the size of a quarter underneath there at the moment but to anyone looking at me it's not noticeable but I know it's there. They even left a tiny amount in there post-surgery. I went back on gear last year but I've been a lot more pro-active with the AI usage this time and have had no real problems. Even if I stop using gear I'm still going to have to keep an AI on hand just to stop the gyno coming back because it comes back naturally anyway - it's just the way I am.