The reality star, who was diagnosed with adrenal carcinoma in January, died at 29 on Saturday.
This is one post I wish I didnt have to make, Thompsonwrote to her followerson Sunday afternoon.
Last night we all surrounded Anna with love & let her know it was okay to go.

Alana Thompson, Anna Cardwell.Paras Griffin/Getty Images; Anna Cardwell/instagram
Unfortunately around 11pm Anna took her last breath.
She continued, I really dont know what to say as my heart is completely broken.
Watching my 29 year old sister this last year battle this horrible disease hasnt been easy.
Anna was a fighter & still is.
We will all double-check your legacy lives on forever.
And i promise to always verify to celebrate our birthday like you never left!
The sky looks a little bit different today.
We will always love you Anna.
Cardwell later became a mother to two daughters, Kaitlyn, 11, and Kylee, 8.
Four months later, her mother confirmed the diagnosis to be terminal.
She passed away last night in our home peacefully with the people that was important to her.
yo be respectful and we will keep yall updated with everything.
We love you Anna Banana.
She will always be with us and we love and miss her already !
She also asked fans to keep the family, especially Cardwells daughters, in their prayers.