The massive worm thing in Gargan Roo, status effect Mini.

I was called a food
But I'm way from the food
Ok, this doesn't really correspond with my answer...

One creature scare at me
They manage to escape from me
But my species follow them after that
It runs first, then when you come back, it chases you to Pinnacle rocks.

Seeing them smaller, make me comfort
As they are smaller than the mist
Even if they did, it just a glitch for me

Seeing them smaller, I guessed mini.

Seems a bit wrong. But yeah. That's my answer: The massive worm thing in Gargan Roo, status effect Mini.