Well it could mean one of two things. She really doesn't want آپ to worry about her یا she does want آپ to worry about her. Kinda depends on the situation I guess.
What's the context? I know I say that a lot when I'm trying to save face. Maybe she just doesn't wanna seem needy یا clingy. It would probably make her happy if آپ checked in on her once in awhile in some way, depending on what the situation is.