Fight Song singer Rachel Platten speaks of battle with postpartum depression

US singer Rachel Platten has spoken about her mental health struggles in an Instagram post (Peter Byrne/PA)

Rachel Platten has described her “incredibly painful battle” with her mental health after the birth of her baby.

The American singer marked six months since her daughter was born with a long post on Instagram detailing her struggles during the postpartum period and how she came through the difficult times.