My iPhone & my daughters iPhone are getting the same text messages I just restored a phone from back up for my daughter.  Now my text messages say they are from her.  We both have IOS 7, and share an Apple ID.
guessing - they're iMessages &amp; both are using the Apple ID rather than just the individual phone number…   

though I still don't think it's very wise have 2 people's devices using the same ID, Family Sharing would seem a better option.

Try removing the ID as an iMessage source, leaving just the phone number, on at least one of the devices…