three american tourists are under investigation. and cnn has spoken to dozens of tourists like the hammells who have gotten ebbs dreamily sick while on vacation in the dominican republic. many who spoke to cnn believe their symptoms go beyond typical travel-related illnesses. but it s unclear what caused them. several reports smelling a strong chemical odor in their rooms before getting sick. many say they suffered stomach cramps, diarrhea and malaise that lasted after they returned home. cnn previously reported the case of caelynn and her boyfriend tom who both fell ill after smelling chemicals in their room at bahia la romana in 2017. according to medical records, their doctors in colorado think they were exposed to organophosphates, toxic chemicals found in pesticides that poisoned them. the abdominal cramping and the g.i. upset lasted for a few