Update
Went to the vet and I showed he the image, she said she's never seen that, and does not think it's an intestinal problem anything. She said that my cat was very healthy. Maybe it was just a bug from the house.
My kitten is almost 5 months old and I was playing with her on my bed,then I noticed a small redish pinkidh worm wiggling on my bed. I checked her bottom and I didn't see anything, it looked clean. Does she have worms?