Back, and Upset?

ok so my step daughter got back. she is upset, yea that's normal for her but also, she doesn't talk any more because of the regression she is in, it  is a very severe regression, and also she has severe autism,(classic autism) so it really makes this worse, well back to what i was saying, when she came back she wouldn't let me touch her at all, usually she lets me a little because she is sensitive so little things can feel like someone is stabbing her with a knife, well the not touching thing is alarming me a bit because unless someone grabbed her hand or leg for a long time i think happened, this probably traumatized her, i checked this isn't because she didn't take her meds, which i know she didn't but because the meds if she does or doesn't take them, this is not normal, it is mostly because of the regression, it is not because anything happened when she was really young because it didn't, this happened over the weekend. so when she was born she was going to be born in august, but then her mother went into labor in march, and she was being born, she had come half way out on march 24 but then they prevented the pregnancy from happening until June, Carmen Lorena Sanchez(middle names and birth last name we don't put first name up for safety)she was still born 2 months early. they told her mother there were going to be problems, when she was 1 and a half they diagnosed autism. her birth mother didn't have enough money to keep her so she put her up for adoption, she was adopted and i have been in her life since.     they say she wont come out of this regression.  we all love you carmen and we are praying for you. peace love joy. momms