Hello! Were your dog all right? I hope you and your dogs had a good time at the camp site! Most of the sentences are good, but I can't understand the last one. 「零した」←Do you want to say that your dog threw up on your bag and shoes? If so, you should use the word 「戻した」←the past tense of 「戻す」or 'modosu' means throw up or vomit. Of course, you can use 「吐く」in this sentence as vomit, in that case,you can say「鞄と靴の上に吐いたのです」 . 「吐いたのです」can be said 「吐いたんです」as a casual expression.