The mother of newborn triplets has been left horrified after a poison pen letter was sent to the hospital ward where her critically ill baby is receiving treatment.

Louise Shaw and her husband Steve welcomed triplets Ada, Lillie and Maggie into the world in August 2025.

But their joy quickly turned to heartbreak when Maggie suffered a series of cardiac arrests shortly after birth and was left with severe brain damage requiring ongoing specialist care.

As she navigated life as a mother of four, Ms Shaw, a nurse, began sharing her family's journey on social media, documenting the challenges of raising triplets while spending long periods by Maggie's hospital bedside.

She also spoke candidly about the financial pressures facing the family, who already had one daughter, as they balanced caring for the newborns with mounting medical and living expenses.

While Ms Shaw said her online community had been a lifeline during her 'darkest days', one follower's actions left her horrified after they sent her a spiteful two-page handwritten letter criticising her parenting and accusing her of playing the victim.

'This awful letter was mailed to my daughter's hospital room,' Ms Shaw told the Daily Mail.

'No name, no signature, no postage info. Just pure unhinged nastiness.'

Even more disturbing, the letter contained a string of personal observations about the family's private life, suggesting the author had been closely following Ms Shaw's social media accounts.

'Congratulations on the birth of your beautiful daughters. I hope you will both read this and think about some advice,' the unsigned letter began.

'Steve, you hold Maggie so gently – when you left Sydney Hospital, then holding her when you are about to put her in the car. She would feel the love.

'Louise, please turn your phone off and put it down and stop ranting and raving and being a victim. Listen to yourself asking for money all the time even though you say you are not hunting for it.'

Ms Shaw has been open about the family's financial strain, revealing she and her husband had already taken out a second mortgage to extend their home in preparation for their growing family.

Ms Shaw's sister, Ally, even launched a GoFundMe campaign on the family's behalf to help support them through the difficult period.

'Maggie has severe, probably the most catastrophic brain damage you can have,' Ms Shaw said.

'We are close to taking her home but last time we did she arrested on me and I had to revive her.

'I haven't even had time to process that because there is so much cost and time involved and people have been so kind to want to help and support us.'

But the anonymous letter writer took aim at those fundraising efforts.

'You ranted about having a mortgage. News alert, millions of people have a mortgage and are doing it hard,' the letter continued.

'Why, when Maggie is still in hospital, do you need overnight care three nights a week? Plenty of families have to manage. Would have kept the help for when Maggie came home.

'No way would I work for you even if you paid a million dollars as I think no one would be good enough, even if they are excellent at their job.'

The criticism did not stop there.

The author then turned their attention to Ms Shaw's social media content, accusing her of exploiting her children by sharing their lives online.

'You keep saying what an educated person, you are, a nurse and you have your own business,' they wrote.

'Why then, with all the social media information, do you continue to put your beautiful daughters on it for the pedo's and creepy creeps to get their thrills.

'Trust me there are plenty of them out there.'

The anonymous author also criticised the way Ms Shaw spoke about her eldest daughter.

Not to mention taking aim at her use of profanity on social media.

'Please stop calling Grace 'Negative Nellie' or telling her to buzz off cause you are ranting on your phone,' the letter read.

'It will not be long in years when she reads all that has been said. Once put out there it will always be there.

'Please stop your swearing, it won't be funny when Grace repeats it or Ada or Millie's first words are 'f**k' or 's**t'.'

Before signing off, the writer returned to the family's fundraising efforts and issued a warning about the money donated by supporters.

'Just a little bit of knowledge, don't forget to tell your accountant or the ATO how much 'GoFundMe' you received. It is still considered income,' they wrote.

'Turn your phone off and stop ranting and enjoy the blessing of your girls.'

While Ms Shaw suspects the letter was written by someone who had become fixated on her online content, she remains deeply unsettled by the lengths the author went to in order to contact her.

'Why are they following me if they feel that strongly about what I do and say?' she said.

'It's essentially hate mail. They didn't even sign it. It's so cowardly.

'I'm just shocked by the audacity of somebody calling me out for the way I live my life and accusing me of constantly asking for money.'

Despite the upsetting experience, Ms Shaw said she had no intention of withdrawing from social media.

'My online community are everything because I don't have anyone else around me, so they have become my village.

'I will not stop being me and I will not stop sharing my journey to help and educate others. If people want to donate to our GoFundMe because they want to help us, they can.

'That person has no idea how much debt we are in.

'Who goes out of their way to write a handwritten letter and send it to a hospital ward?'