A woman from the San Francisco Bay Area has garnered widespread attention on social media after her Great Dane service dog, Otti, saved her from potentially dangerous circumstances during a medical episode. The incident, shared by Alexa on TikTok, highlights not only the crucial bond between service animals and their handlers but also sheds light on the often-overlooked challenges faced by those living with invisible disabilities.
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Alexa, a 35-year-old administrative assistant, has been managing Postural Orthostatic Tachycardia Syndrome (POTS), a chronic condition that significantly impacts her daily activities. POTS is characterised by extreme fluctuations in heart rate and blood pressure, particularly when transitioning from lying down to standing. “Basic tasks that most people don’t think twice about suddenly became very difficult for me,” she remarked, expressing the profound impact of her condition.

For the past eight years, Alexa has navigated her life with POTS, undergoing various forms of treatment including physical therapy and vestibular rehabilitation. However, she faced serious setbacks, one of which included a blood clot related to a treatment port. Despite these challenges, she has found invaluable companionship and support in her service dog, Otti. The five-year-old Great Dane is her second service animal, chosen for his ability to assist her in ways that have transformed her life. “I have always had a love and passion for dogs, so a service animal is the perfect fit for my needs,” she explained.
Otti’s training allows him to detect sudden changes in Alexa’s heart rate and oxygen levels, often alerting her before she even realises something is amiss. His ability to provide deep pressure therapy, help with balance, and guide Alexa in times of disorientation has made him an essential part of her life, especially during medical emergencies. The dog’s physical size enhances his ability to provide the necessary support, making him a remarkable companion in challenging situations.
The incident that caught the public’s eye occurred following a visit to her cardiologist when Otti sensed that Alexa’s health was declining. At the top of a staircase, he alerted her that her heart rate had spiked and her oxygen levels had dropped. “I tried to keep moving toward the stairs, but he completely stopped me and refused to let me go down,” Alexa recounted. This instinctive action likely averted a more serious situation. Alexa credited Otti with knowing that descending the stairs could lead to her fainting, which may have resulted in severe injury.
The video depicting Otti’s intervention quickly went viral on TikTok, amassing over seven million views, surprising Alexa with its overwhelming reception. “I honestly never expected the video to reach so many people,” she said, noting the emotional responses from viewers who resonated with her experiences. The profound nature of the video prompted many comments expressing compassion and a deeper understanding of the daily struggles faced by individuals with chronic conditions.
Aside from her newfound social media fame, Alexa aims to use her platform to raise awareness about invisible disabilities and the role of service dogs. She acknowledges the common misconception that if someone does not visibly appear disabled, they must not be. “There is a huge misconception around invisible disabilities and service animals,” she stated. Her openness about living with this condition has facilitated connections with others facing similar challenges, creating a sense of community.
However, the journey with a service dog is not without its challenges. While Otti’s support is invaluable, managing a large dog in public spaces and ensuring he is not distracted can prove difficult. “A service dog is a lot of work,” she admitted, underscoring the need for proper etiquette surrounding service animals. Distractions can lead to critical alerts being missed, putting her health at risk.
In sharing her journey, Alexa hopes to bring attention to the importance of understanding invisible disabilities and the vital role service animals play in assisting those who live with them. Her story exemplifies not only a personal triumph but also serves as a testament to the commitment and bond between human and dog in the face of adversity.
