Yup. And to be clear to anyone who thinks it's only overwork: I've had these injuries while training intensely, and I've had them after rest periods when I star

Yup. And to be clear to anyone who thinks it's only overwork: I've had these injuries while training intensely, and I've had them after rest periods when I start again, or during non-intense training. Muscle injuries can happen in either circumstances, and they take a while to heal properly.