Found the first 4 weeks to be pretty easy so have been disheartened to find week 5 a little tougher. I've repeated w5r1 3 times because I was finding it tough, just felt really hard to push through it and my calf muscles were so tight it felt like they were seizing up.
Thought maybe following the familiar pattern of doing a new run 3 times would help, and it has helped me with stamina. It no longer feels difficult in terms of mental fatigue and my breathing is steady. But I still feel a lot of discomfort in my calves, especially with the final 5 minutes, and for a minute or two after when I start walking it feels really hard to work because of how tight my calves are.
Is this a sign to keep repeating w5r1? I'd really like to move on to run 2, because otherwise I feel ready. I do recover from the discomfort pretty quickly with cool down and stretching and the next day there's no soreness.