Last Sunday I went to a "fun walk" which was walking for a few kms (I'm not keeping up).starting at Merdeka Walk and then back to Merdeka Walk. I didn't really feel exhausted at the time, but the day after that was when the pain began. Anyway, I woke up late that day. We were supposed to start walking at 6am but I woke up at 6am and it's a pretty long drive from my house to there. So it was actually kind of ridiculous.