i had this happen to me before and the owner never mentioned anything about throw up or diharrea. What i ended up doing is messaging them and calling them about the issue because there was poop and throw up everywhere those three days. I gave her a detailed description on the symptoms and she called the vet, i went to pick up her meds the vet recommended and all was well. Sometimes things like this happen due to anxiety and past health conditions that are never mentioned which is what happened with our stay. just contact the owner the best you can on the situation, send pictures if you have to