Help😔

Taylor

My 3yr old (will be 4 next weekend) keeps talking about dying. Her preschool teacher pulled me aside after class today and said shes worried bc my daughter keeps telling her that I was in a car accident and died and then told her that she fell in a river and died. I'm not sure what to do.. when I asked her about it she argued with me that I did die n when I told her I'm okay she said good i dont want you to die I'd miss you..idk where shes getting this from or how to make her not worry and how to get her to stop saying these things at school.. help please 😔