After ios 7 update text messaging problems

[HRIDGWAY]

My daughter and I both have Iphones and both updated the ios 7.  Now, when I send some of my text messages, my daughter's phone number shows up on the recievers phone as if she sent the message, and sometimes the messages I send out, send a copy to her phone.  Also, if I send my daughter a text, it comes right back to me from her phone number as if she sent me the message.  Can I fix this.  (we also are on the same itunes acct.)