The Hollywood actress has two children with her rocker husband Chris Martin – Apple, five, and Moses, four.
But the Iron Man star admits when her son was born in 2006, she failed to bond with him and kept her post-natal problems secret until the Coldplay star confronted her over the issue.
She tells Vogue magazine, “At my lowest, I was a robot. I just didn’t feel anything. I had no maternal feelings for him – it was awful. I had no thoughts of harming him, thank God, but I couldn’t connect, and still, when I look at pictures of him at three months old, I don’t remember that time.
“My problem was that I never acknowledged anything was wrong. I just carried on as normal, and I just felt crazy. It was Chris, actually, who said out loud that something was wrong. And that was such a relief when he did because it was confirmation that it wasn’t just me.”
Paltrow admits she managed to work through her emotional issues with her husband’s help, and found a new exercise program helped lift her from her misery.
She adds, “That was the beginning. That was when I cracked it – I started exercising and I started thinking about working again. That’s my problem, though. Sometimes I have a hard time saying what I need to say. I’ll be annoyed. I’ll stew. I’ll build a wall around me and give off the silent treatment – and I know that’s not healthy.”