To be honest, if you were one of my training clients and you'd ruled out a pain issue, I'd be telling you to talk to one of our good local behavior vets about medication, because at that level of anxiety, it's really hard to address the problem with training. I've had meh results with some of the herbal and homeopathic remedies with my anxiousdog clients and excellent results with prozac and ... argh. One other med, I'd have to dig out my notebook to find the notes for that dog.

Dr. Karen Overall's Relaxation Protocol (http://www.dogdaysnw.com/doc/OverallRelaxationProtocol.pdf) can be a good first step, training-wise, for addressing anxiety, but at an incessnent level of whining, I'd be pretty concerned about getting the dog to a point she could relax as a baseline.