Sounds like you had quite an adventure! :-)
It could have been a disaster on Day One had we not changed plans and a really EMBARRASSING disaster on Day Two had I not found the Portuguese official's private bathroom before the ticking time bomb triggered by my stomach had gone off. I did read a warning in advance of the trip not to eat food from street vendors there but my wife bought a fruit cup and gave me a strawberry and a piece of pineapple and within seconds I could actually hear my stomach loudly gurgling followed by a feeling of impending internal eruption.