Damian Lillard has had his fair share of nagging injuries over the course of his career. Examples include: A groan injury and tweaked knee last season, a hamstring strain during the 2017-18 season, lingering plantar fasciitis during the 2015-16 season, at least a couple jammed fingers, etc.
Lillard often seems to gut through these injuries, only sitting out games when absolutely necessary. Despite that resilience, Dame made an interesting point about injury management in December, 2017 (emphasis mine):
It’s frustrating because I want to play. It’s not the first time I’ve had a little nagging injury.