I'm glad you brought her in, at least for nights. Hopefully you'll have a few days where it's sunny and you can take her outside to at least be placed in a protected sunny spot when it warms a bit.
Re-check the crop. Hopefully she's just drinking a lot because she was not drinking enough outside.
If you think the crop is turning sour, give her tomato juice about 10ml twice a day, this may help get things moving and help reduce yeast. She may also drink it on her own.
If you need to give her Miconazole or Clotrimazole, draw the cream dose up into a needless syringe, then syringe the cream directly into the beak like you would oral medication. Give a little at a time, let her swallow, then a bit more until gone.
Her poop doesn't look great, but imho, that's what I would expect to see. She may get through this rough patch yet again or this may be her time, it's so hard to know, they can surprise you but can also break your heart.