
It's often said that social media is a horrible place, but sometimes strangers can save your life without you even realising.
And that was the case of one woman from the UK who absentmindedly posted a picture of her eyes after the pupils became diluted, without the realisation that her symptoms could, in fact, be deadly.
She uploaded a picture to the 'Eyes' subreddit under the heading: "Why are my eyes so dilated?"
The young woman wrote: "Woke up today and I honestly can't tell you whether they were as dilated as this or not in the morning as I wasn't really paying attention, but by the evening, as I was in the bathroom I noticed how freaking dark my eyes were and how huge my pupils are.
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"The only thing I've been feeling have just been headaches, what do I do? I also attached a pic of my eyes 'normal', a picture taken not too long ago."


She also posted a photo of her eyes taken just a few days before, which highlighted the significant difference in the two, and users on the site were quick to recommend that she should go to hospital as soon as possible.
"Please go to the ER… this isn't worth losing your vision, or having something worse happen," one explained.
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"The pupils, headache, and worsening vision is something that will be taken very seriously at the hospital. I know you said you can't afford anything right now, but can you afford permanent neurological damage? Please don't wait it out'."
A third commented: "Neurological events are nothing to take lightly, they become fatal very quickly."
Of course, there are many things on the internet that you cannot trust, but when so many people come together to recommend the same thing, it is often a sign that they might be worth listening to.
After ringing 111, an ambulance was sent to her home and after being seen at the hospital, doctors realised that she had a blood clot on her brain.

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The woman added: "They quickly put me on blood thinners and I'm currently still in the hospital and will be for a few days.
"The doctor said if I had called 111 any later, I probably would have had a stroke and since I was alone there was a very real chance I would have possibly died."
While there are many occasions where you don't need to worry about dilated pupils, particularly when you look at someone or something you love, when combined with headaches, it can be a sign of something far more serious.
It is not the first time that Reddit has saved a life and hopefully it won't be the last, as it proves that asking for help is often the best thing to do in situations where you might be worried or unsure about something.
Topics: Reddit, Health, Social Media