I may be jumping the gun as it has only happened tonight so far...but Thistle's poop smells very different and much stronger than usual! I want to say metallic is a good word to describe the new smell? Recently I started putting flax seed oil into her food, but only a few drops maybe once or twice a week. She's been eating and drinking fine but this smell is bad enough that I'm considering sleeping in a different room! If anyone can give me any idea's as to what might be the problem, I would appreciate it!