The green poo is almost certainly urates. Mine periodically make florescent green piles, too. It's alarming, but still normal.

So is going off feed for a month or more. It's a weird time of year for it, but you're not the only one with an animal doing this right now. It's basically hormones. You can try pairing her early, before she loses too much more weight, see what it gets you? Some girls produce follicles at weird times of the year.