I am new to this site and I'm trying to find out exactly what my dream meant? I woke up so fast and scared :(

My sister was able to take my son to school with her so I let her. When it was time to go pick them up I was in front of the store with the stroller waiting for her to come. But she never did so I went into the school asking everybody if they knew her and it seemed as if one girl did but didn't"t want to say anything...
So I now have a friend's cousin helping me look for them and he received a call from my friend (his cousin) but he missed the call. So we ran as fast as we could back to the store where my sister was sitting with another old family friend but she didn't have my son :( so I ask her where my son is and she starts crying. The more I scream where is he the more she cries. As she is crying she looks at the family friend with that "should I tell her look"
And that's when I woke up so fast and scared :(
I think she was about to tell me my son died and that's why I woke up so fast.

But can anybody please tell me what this dream might mean?

Thanks for all your help,
Nicole

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I had a similar dream with my first kid.
I think it is just worry and over reaction of being protective of your child