She just felt she had to go right away to the hospital. Doctors published the case study of a 22-year-old woman in Texas with a congenital heart defect who also suffered from a broken heart after her dog died.
The condition mimics the symptoms of a heart attack and is usually prompted by an emotional event.
A PET owner suffered a GENUINE broken heart and almost died because of devastation at the loss of her beloved pet dog.
"It is heartbreaking, it is traumatic, it is all of the above", Ms Simpson said.
However after finding that her heart and arteries were healthy they realised she was instead suffering from Takotsubo cardiomyopathy, or broken heart syndrome. This condition is commonly called a "broken-heart symptom", and was initially described in Japan in 1990. "I really took it really, really hard". Also, she was anxious because her son had to go through back surgery, her son-in-law couldn't find employment, and she was selling one of her properties. It "made complete sense", Simpson said. She said that her dog was the "little girl" of her family because her "kids were grown and out of the house".
Ms Simpson said it was a "horrendous thing to see", but is still planning to have another pet in future.
"When you're already kind of upset about other things, it's like a brick on a scale. I mean everything just weighs on you". She is the kind of person who takes "things more to heart than a lot of people", she said, and she figures this tendency means her heart will break again, though maybe not so literally.
At first, doctors at the hospital thought Simpson was experiencing a heart attack, as her body had manifested the typical symptoms.
Simpson's heart after it "broke". Simpson was then diagnosed with Takotsubo cardiomyopathy. Only a pet owner can know the true heartache of losing their beloved companion. But you know what?
There's no denying the huge role pets play in many people's lives, not only providing love and companionship, but also numerous proven health benefits.
Simpson told the Post that she still has her cat and will continue to own pets, despite her brush with a broken heart. That's not going to stop me'.
Broken-heart syndrome is surprisingly common. The heart temporarily stops pumping effectively, which can result in low blood pressure and even congestive heart failure. "The heart muscle suddenly weakens and doesn't squeeze the way it should", he says. People who start feeling it present symptoms like chest pain and shortness of breath.
Takotsubo cardiomyopathy, the case study says, "typically occurs in postmenopausal women and may be preceded by a stressful or emotional event", which is why it is called broken heart syndrome.
The broken-heart condition has only been recently reported in the United States.
However, tests later showed that she was actually experiencing symptoms similar to that of heart attacks.
Many people also suffer palpitations, nausea and vomiting.