aww if you had just posted side profiles ofyour chest I would have said you did not have it.I like being the bringer of good news.
Shame when i looked at the frontal shot I can say as well it looks like gyno. More so when I saw you had low bodyfat.Idoubt exercise woould get rid of that. It looks like a minor case to me.
It all depends how much it bothers you when considering what option to take. If you go the surgery rout as juice says do some research and maybe shop around a little. As well as that get a hormone profile done just in case before you have surgery. Don't want it coming back.
Good luck. My case looks a bit like yours now after weight loss toningup but it is just on one side .funny eh.