Missing Mocha: Cross-Eyed Siamese in AL

Snowshoe/Siamese, male, neutered, white belly, legs and paws, darkish brown on back and tail, one pinkish colored ear, blue eyes-sorta cross-eyed, had on a blue collar with a white and green tag, inside cat only, 1 yr old, chipped. We live in Tx, went to AL visiting parents for the holidays, our 16 yr old 4 lb yorkie died on Dec 27 and Mocha went missing on Dec 29. Don’t know if he was grieving, or if he was nervous/scared with kids running in and out of the house and being loud, plus he was playing with another male kitten which I thought he was ok with because he loved playing with our yorkie. He is calm, little skittish but would come to me when I called him. We went door to door looking in neighborhood for him, have him listed on fb lost pets of Enterprise, had his bed, blanket, food, water, liter box, my shirt that had my smell on it. He never returned and no one has seen him. We have passed out flyers of his pictures.