My husband's niece is here visiting us from Mexico and she displays some of the most funny behaviors I've seen in a child her age. She is soon to be 13 years old and still plays with dolls. She gets along wonderfully with my 3 year old daughter and prefers to play with younger children. She acts like a child half her age. She also has what seems like bouts of nerves where she screams, cries, or spontaneously laughs for short periods of time every so often. She has also not yet learned to read and doesn't write well. She seems to speak well, but the tone of her speech and the way she speaks in general, again, seems to be that of a child much younger. I understand and speak Spanish quite well, so I can understand her and the connotations she uses. She's never seen any sort of specialist or anything since there aren't many doctors in the small town they live in down there. I just wondered if she could possibly be autistic or something? What does this sound like?