We have a 3 mo. old pembroke. No health issues. According to web info they can get back injuries,. My question to you all is, Should she be allowed to jump on/off the furniture? how about in/out of the car? Right now she is not allowed (I don't think she is even capable yet). When she is full grown how much or what kind of activity is bad for their back? Are we being overly concerned? Thank you for any replies, Jenny