Terrible twos or Spectrum disorder?

I adopted a little girl who is now 2 1/2 years old. I've had her since she was 12 days old. Her Mother is Bipolar and psychosis, her father is bipolar and schitzophrenia as well as her paternal grandparents are bipolar. They are all extreme cases. Kaylee is 2 1/2 years old. She was born 9 weeks early. Her mother drank alcohol during pregnancy. She never crawled. She walked at 10 months. She is a toe(tip toe) walker 98% of the time. She has highs and lows, she eats unedible things like dirt, coffee grounds, paint, chalk, drywall spackle, sand and sometimes feces. She likes to smear the contents of her dirty diaper all over. She is an excessive risk taker. She talks very well. She is good at legos but doesn't play with toys for long. She will not potty train. She lays around the house all day one day then is bouncing off the walls the next. She doesn't play well with others. She is a food hoarder. She will attack a child for what they are eating. She is extremely distructive. She has exposive behavior is hard to calm her. She won't make eye contact. She always wants to touch something hot. I took her to the doctor and he said that she is showing some signs of Autism but I think it is more Aspergers or  Sensory Processing Disorder. I need some advice.

[KarenDiane]

Well, given her history, it could be a lot of things. Fetal Alcohol Syndrome is a possibility. Also, children can be bipolar. My daughter has Aspergers and I don't think it sounds like AS. Could be SPD or PDD-NOS. She should be evaluated by a child psychologist.