Translation of oportunamente

I fell asleep but woke up in the middle of the night. My stomach turned upside down and I could not hold myself anymore. I needed to vomit and ran to the bathroom. This occurred three times.
One could see in every touristic site and traveler's office advertisement for language schools and private teachers. The teachers usually gave the CV with an nice picture of themselves. It looked funny.
Luckily the town was small and the hotel manager could call all taxi stations. They checked it through their radios and an hour later the driver was back with our bags. He did not want to be paid extra, but I insisted.