Hello - I am new to this forum. We have had a sulcata tortoise for about 5 years now. We live in southern New Mexico. We have a greenhouse set up for her to live in during the cold winters with a "pig" pad that plugs in to keep her warm and heat lights. There is a ramp so she can come and go into our yard as she pleases. We are having a problem right now in that she is secreting white urine and dry, white poop. She has had some regular looking poop, too, but quite a bit of the white stuff. She has a yard of grass to eat, and we also feed her kale, sweet potatoes and pumpkin with some sort of supplemental powder I got from an online tortoise food site (sorry I can't remember what it is at the moment). Are we overfeeding her. There are several shallow bowls of water around the yard at her disposal to drink. Any suggestions are welcome! Thank you....