Q: iphn & iPad keeps asking me to sign in...

I have had no probs with my devices until this past weekend. My phone and pad were synced perfectly and in harmony...then all the sudden I'm asked to enter my ID and pswd over and over.

I updated my pswd as instructed, now I cannot change the security questions and my answers from the previous questions are not recognized...was I hacked? Dunno, but I do know I cannot sync my devices and the message to log into my Apple profile keeps popping up over and over and over and over...

When I go into appleid and try to reset the security questions I log in, then get a message that theres not enough information to continue...trapped in an endless loop!

PLEASE HELP!!!