Physical or chemical change?
Red and blue food coloring mix to make purple.

chemical change

Explanation:

because physical is like if something is happening inside your body

BTW

I hope this helps

- "the acute form of diverticulitis can manifest itself with one or more severe attacks of infection and inflammation.

the inflammation of diverticulitis can eventually result in a bowel obstruction, which may cause constipation, thin stools, diarrhea, abdominal swelling or bloating, and abdominal pain."