I dreamed my daughter was having trouble in college
Do you think that your dreams are connected to your daughter?
I believe we're connected in a different way
You could just call her and ask about it. It's probably not a good idea to mention the dream though.
Why shouldn't I mention the dream? I want to warn her about the danger she could be in. Maybe I should try to stop the trouble myself instead.
I mean that it is good that you are worried about your child. If you are so concerned, I think that a phone call might give you some reassurance.