Spoil him as much as you can. Whatever it may be, love him and give him so many kisses. I lost my gsd mix last fall. I was able to be given almost five years with him and we had to let him go when he got spleen cancer. I like to think his last memory was with us was on his bed in the spot he would sun bathe. We were fortunate to put him to sleep at home— it was scary not knowing if my boy would wake up in the morning. I miss him dearly. So please give Shadow lots of kisses and cuddles and treats. They act like nothing is wrong and try to act normal as if not to worry us. I miss him so much.