So, we didn't end up putting him down yet. Yesterday turned out better then we thought. He would get up mostly by himself and then could walk only on the carpeted areas. Actually went outside to do his business but was still kinda depressed. So we put it off to see if today would be an even different story..... And it is. He gets up by himself even on the tile and hardwood and goes #1 & #2 outside. Is eating normal again. Must have been slow to recover from being sedated. Kidneys not filtering fast enough? Idk! But at least we know he has an issue and will be less stressful when his time does come. Thanks to all for the kind words.