E have a 15 year old Desert Tortoise that has suffered brain damage. My husband found him upside down deep in the burrow that he shares with his "siblings". He has always been different because his shell didn't harden properly. Now, he only moves by doing tight circles to the right. He rarely opens his left eye. He can open his mouth, but won't open it to eat. It also makes a weird poplins sound when he does open it. I took him to the vet 3 weeks ago right after it happened. She discovered he also has a bladder stone. I have been soaking him and syringe feeding him Oxbow Critical Care. I can pile his favorite foods in front of him, and he looks at them, but never takes a bite on his own. He also doesn't move himself out of the sun, so I have to watch him closely so he doesn't overheat. We are debating quantity vs quality of life at this point. Does anyone have any experience with this? advice? How long should we give him to see if recovery's possible? Thanks .