Di Bannister never expected to be impacted by a serious episode of depression.
The Lifeline Mid Coast crisis support manager went through a difficult period, which she didn't recognise for about six to eight weeks.
"I was going to work everyday and fell into a deep hole," she said.
As a self-described extrovert she had become very introverted.
"I wasn't telling people that I wasn't feeling great," she said.
"I was also avoiding everybody at every opportunity that I could."
Mrs Bannister started to change her habits and attended work with wet hair, while also nearly wearing a tracksuit.
"I usually enjoy wearing nice clothes and taking care of my appearance," she said.
Eventually Mrs Bannister sought the help she required from her general practitioner, who prescribed her with appropriate medication.
Mrs Bannister's colleagues didn't raise their concerns about her behaviour, despite recognising something was different.
They believed Mrs Bannister knew she was acting in a manner which was divergent from her usual behaviour.
Mrs Bannister said early intervention is key when it comes to helping someone who might be struggling.
It might take a friend, work colleague or family member to point out if someone is acting differently and asking if they are ok.
"People who are becoming mentally and sometimes physically unwell actually know it earlier than they recognise it," she said.
After her experience Mrs Bannister is calling on people to be brave and check on those they suspect aren't doing ok.
"Why not do it as part of our check in with our friends, acquaintances or colleagues?," she said.
"We should challenge ourselves to be that brave person."
To speak to a Lifeline crisis supporter phone 13 11 14. This service is available 24 hours a day, seven days a week.