Excitement galore and flat feet. Every woman knows it can be utter shit when Aunt Irma (monthly period) visits. It is also shit when she does so while on vacation. It is even more shit when she comes two days early, with massive cramps and a lovely migraine. Yup. That was my travel day to London in a nutshell. On top of that it was the hottest day in April since 2007, and I truly can’t stand the heat, my brain felt like it was slowly turning to liquid inside my skull. We arrived at Waterloo station and were then supposed to take the tube to Fenchurch station. We skipped…