We got both dogs at the same time when they were pups, they are now both 5 years old. The one chewing right now has always been the submissive one of the pair, no real changes in the household.
The pawing and scratching for attention has been going on for a few years, but it was never out of control. It has only been recently that she started biting herself for the attention. We can't figure out what started it, but we are definitely going to try all the suggestions we've gotten here.
I think the real key is to show her that we are the bosses...and we need to ignore her when she does this behavior.
Thanks so much for everything. Jackie