A blogger has stunned her followers after admitting she didn't realize how many people had died in the 9/11 attacks until one year after the fact.

Katie Bower, a mother of five based in Atlanta, Georgia, shared a post with her 52,000 Instagram followers on Thursday, in which she discussed the attacks and how they have impacted her.

The blogger, now 35, said she 'had no idea what the deal was with 9/11 when it happened' and that she didn't realize back then that there were people inside the Twin Towers when each was hit by a plane.

Shocked: Blogger Katie Bower, 35, has stunned her followers after admitting she didn't realize how many people had died in the 9/11 attacks until one year after the fact

Publication: In her Instagram post, Bower said she didn't know when the 9/11 attacks happened that there were people in the Twin Towers when they were hit by planes

Message: Instagram users left comments below Bower's post expressing how baffled they were by her admission

Timeline: One person pointed out that Bower was a college student when the 9/11 attacks unfolded. She was likely around 18 at the time

Bower, started her post by saying she was editing photos for a post about a trip she took with her family to a rodeo when she came upon an image of her son Will.

'I was editing photos yesterday for today's post all about our trip to the rodeo and I saw that picture of Will and just LOST it. Like ugly cry,' she wrote.

'I told y'all about how literally I had no idea what the deal was with 9-11 when it happened (I was a stupid airhead at the time that didn't realize that people were actually in the buildings ) and it didn't hit me until a year later that so many people died.'

Bower explained that the remembrance of the attacks gets 'more emotional' for her every year, as was the case for her on Tuesday.

'It felt filled with poignant moments of grief and remorse and honestly some shame — because who is that stupid?!' she added.

'And now to be more aware of that situation — to understand... for the folks who lost someone. And I couldn't imagine... couldn't process... couldn't handle the day.'

Nearly 3,000 people were killed in the attacks in New York City, at the Pentagon in Arlington County, Virginia, and in Stonycreek Township near Shanksville, Pennsylvania, where a hijacked California-bound plane crashed.

Explaining: Bower said in another comment that she didn't know 'what kind of buildings' the Twin Towers were

Lifestyle: The blogger said she didn't have a TV at the time and was living in a 'bubble'

Opening up: Bower (pictured with her husband Jeremy and their five children) said her past ignorance was 'embarrassing'

Bower's post left many Instagram users baffled, with some expressing their shock in the comments section.

The blogger was in college at the time of the attacks, and was likely around 18 years old.

'You were in college and didn't realize there were people inside large buildings? And you're admitting this out loud? Yikes,' one person wrote in a comment.

Someone else told the blogger: 'Some things are best left unsaid.'

'Maybe keep that story to yourself next time,' another Instagram user suggested.

Bower, who called her own past ignorance embarrassing, said in a comment of her own that she didn't know 'what kind of buildings [the Twin Towers] were or even where they were!'

'Honestly I thought they were like AmericasMart here in Atlanta,' she added in reference to the massive wholesale trade center located in her home state.

'I figured it was similar since I didn't have any info. I had been in AmericasMart a couple times and it was mostly just furniture and clothing and junk for sale and sometimes it opened at 10 am.

'I know it sounds weird but I had no reference point and this was before I could google. Nobody had cell phones and even the internet was different. I had dial-up. Nobody talked to me about it and I didn't even know what to ask. It's super embarrassing.'

Response: One Instagram user suggested Bower refrain from sharing the story again

Suggestion: Another person told the blogger she could 'just acknowledge the day and those who lose loved ones' in the future

The blogger also explained that she 'didn't watch the news' at the time and spent most of her time attending classes, working, and playing two sports in college.

'I didn't have a TV and I didn't have a newspaper in college,' she wrote. 'It was a weird time in my life when all I did was study and practice and sleep and work and work out and go on walks with boys. It was life in a bubble.'

She explained in another comment: 'There was one in our foyer of our dorm but I was busy.

'I was in college taking tons of credit hours in a semester and working in a bio lab and playing two sports.

'I didn't talk to people about it and nobody talked to me about it. I didn't go anywhere but class or or work or practice. I literally was in a bubble.

'I remember mourning for the people on the planes but the idea of terrorism and the magnitude of the numbers — all of it — it was so foreign to me and nobody explained it to me until a year later when I was at home and watched a program about it.

'Then I lost it. It was suddenly a reality and reality seemed like a horror show. Imagine seeing it all a year later — the crashes, the pentagon, the Pennsylvania field, the people, the missing loved ones signs, the fireman, the flags, the babies that were born who lost a parent... everything... in an hour. I was literally shaking and weeping on the floor.'

Baffled: One Instagram user told Bower some of the people sympathizing with her might not have realized she wasn't a child when the attacks occurred

Support: Some Instagram users sided with the blogger, telling her it was a 'good thing' she was unable to process the gravity of the attacks

'It was life in a bubble': Bower said she didn't know exactly what the Twin Towers (pictured on the day of the attacks) were or where they were located

Some Instagram users sided with the blogger, including one person who told her: 'There's nothing wrong with being so naive that you can't fathom the gravity of something so completely horrible.

'Your brain will only comprehend whats in its realm of possibility. That obviously wasn't for you. There's a beauty in that. Hugs. I hate that it had to change for you and so many others.'

'It was a GOOD thing that you couldn't comprehend what was happening,' another person wrote. 'It was so far beyond evil that your mind couldn't digest it. Maybe if we had more of that in the world then things so terrible wouldn't happen.'

Some, however, remained shocked by Bower's admission.

'Katie I think a lot of the people sympathizing with you not understanding 9/11 think you were a child at the time? You were in your 20s? Let this "truth" go, it's embarrassing for you to not "know,"' one person wrote.

Someone else commented: 'You've talked about your reaction to 9/11 several times over the years. Every time you bring up your reaction, it's kind of hurtful to those who were affected.

'Maybe next year, just acknowledge the day and those who lost loved ones and leave the part where you center yourself out.'