Perrie Edwards has revealed that her anxiety was so crippling, she "developed a fear of being on her own".
Last month, Perrie opened up about her condition on Instagram - saying she suffers with panic attacks and that her first one left her feeling like she'd had a heart attack.
And now, in her first solo interview to Glamour Magazine , the Little Mix band member has disclosed the full extent of her mental health problems.
She said: "Weirdly when I first started experiencing the panic attacks, I developed a fear of being on my own. It’s a lot better than it was, I kept thinking, 'if I’m on my own and I have a panic attack, what do I do?'.
"I’ve got nobody to reason with me and I can’t rationalise it in my head or get a sense of it.
"It got to the point where my mum was coming to the studio with me, she would drive to work with me because I couldn’t get in a car on my own."
But opening up about her emotions proved difficult for Perrie, who has been in thE limelight since 2011.
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She said: "At first, I never wanted to open up about it. When it first started happening to me, it felt like it had never happened to anyone before. I can’t explain it.
"It was almost like I didn’t know what was happening when I was going through the physical attacks and panic attacks. I’ve always had anxiety, I just don’t think it’s ever been triggered in a way where it’s become a physical attack so when it first started happening to me, it was so scary because I didn’t know what was going on.
"I was ringing doctors, I was ringing everybody being like, ‘I’m dying, I’ve just had a heart attack!’ I thought there was genuinely something wrong with me."
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Perrie admitted that even now she still struggles with public transport, revealing that in order to see her boyfriend Alex Oxlade-Chamberlain she has to drive.
She continued: "Even now, my boyfriend lives in Manchester because he plays for Liverpool so when he moved, it was crap and then once this started happening.
"I still can’t get the train on my own, it freaks me out and makes me feel really claustrophobic. I feel uneasy."
But after her cousin, Ellie moved in with her, Perrie said her anxiety has improved.
She said: "When I look back now to this weird wobble I had, I never thought I’d be where I am now because I never thought there was a way out. I thought this is me now, I’m going to be a house hermit, I’m never going to leave the house...
"It was like learning to walk again, it was so bizarre."
