United Kingdom, Sept. 24 -- Teddi Mellencamp's emotions are "high" amid her ongoing cancer battle.

The 44-year-old TV personality revealed in April that her stage four melanoma - a dangerous form of skin cancer - had spread to her brain and lungs, and now she has taken to Instagram to ask her fans for positive messages because she is "struggling".

Captioning a bare-faced selfie of her sitting in a home, wearing a beige hoodie and showing off her short blonde hair, Teddi wrote: "Mondays, am I right?

"Emotions high. Love to everyone out there. If I haven't responded to your text, I love you. I am just struggling.

"How are y'all doing? Would love to hear one of your positives from today.

"Mine is: I feel very grateful for the people in ...