Okay, this movie I think was made in the late 90's and it was about a young boy who was kidnapped in a grocery store (?) I think maybe and he grows up with that family and so many years later his real mother recognizes him and takes him back but the boy doesn't feel comfortable living with his real mother because he grew up with the woman who kidnapped him who claimed to be his mother.

The Deep End of the Ocean (1999) (http://www.imdb.com/title/tt0120646/)?

YES ! Thank you very much!