Nix, based in Canada, was a social media star and MD who began gaining attention after documenting her life on Instagram and TikTok.
The content creator’s account has amassed over 137,000 followers, with many of her TikTok videos reaching over a million people.
Heartbreakingly, Nix has announced her own passing in a video posted online.
People have taken to social media and paid tribute to the TikTok star, with one fan penning: “Rest easy Dr Kim. You truly were a light here.”
Another adds: “Rest now Dr Kim, thank you for all your videos, we learned a lot. Strength to your hubby and all your loved ones.”
Somebody else writes: “I have never cried over a social media personality before but here I am. Thank you for all the work you have done here, Kim.”
Nix’s social media accounts were dedicated to sharing her journey and aimed to inspire others to live life, in spite of its obstacles.
The TikToker previously told People: “I only have one thing in my life that is tough or hard right now. Yes, it is serious, but, just one thing.
“Life is so much more. It’s friends, family, pets, your career, the perfect temperature first sip of tea, the beautiful snow-tipped mountains.”
Nix was diagnosed with metastatic sarcoma when she was 28 years old.
Soft tissue sarcoma becomes metastatic if it spreads to other areas of the body, away from the location of the original tumour, according to Medical News Today.
People magazine reports that Nix specifically had undifferentiated pleomorphic sarcoma, which typically occurs in the legs, arms, or back of the abdomen.
“In 2023, an estimated 13,400 people (7,400 men and boys and 6,000 women and girls) in the United States will be diagnosed with soft-tissue sarcoma,” reports Cancer.net.
“It is estimated that 5,140 deaths (2,720 men and boys and 2,420 women and girls) from this disease will occur in the United States in 2023.”
Nix wanted to raise awareness of sarcoma symptoms – with the TikToker having one of the most common.
She had a ‘rapidly growing’ lump in her left leg and it went from pea-sized to golf ball-sized within just a week.
Sadly, it has now been announced that the TikTok star has passed away.
Nix posted one last video to her account, which has reached over six million people at the time of writing.
While applying her makeup in the video, Nix reminisces about her happiest moments, such as attending Taylor Swift’s Eras Tour.
In the video, Nix says: “Hello followers, if you’re seeing this message I have passed away peacefully.
“For those of you who don’t know me, my name is Kim, hi! It’s so nice to meet you and you’re welcome to check out all the cool sarcoma facts, information and my lived experience with death and dying with sarcoma cancer. You don’t have to go just because you’re new.”
She continues: “I love you all, thank you so much for this amazing opportunity. I’m in happy tears because you’ve all made me find so much purpose at the end of my life.”
The video’s caption reads: “My journey here is over and I can’t thank each and every one of you enough! You have all made me so happy and your comments and support are more than enough to have gotten anyone through anything!
“If you wish, please donate through the link in my bio to sarcoma cancer research and follow my husband in his updates.”
Nix is survived by her husband, Michael MacIsaac.
