Background: We have always had rescue dogs so I thought I was pretty aware of their needs. Adopted a rescue from Eastern Europe coming up to two years ago. She was six months when she arrived and all we know is she was rescued from a 'kill shelter' with her mother and litter at around 6 weeks. I have seen videos of her as a puppy happily running around with her pack and she was described as 'loving and affectionate'. She spends most of her with me now as I WFH but will spend time at my mother's too if I have to go away (the odd night). I have three children who adore her as much as she adores them. We live in a very rural area so don't have many passers-by or encounter other people or dogs on our walks.
The issue is this - she is nervous beyond belief and I say that as someone who has had nervous dogs before. Although she spends time with me and trusts me (I think), if I so much as walk past her with anything, she flees across the room. This can be a box, a charging cable, a pile of clothes - anything unfamiliar. She is an absolute nightmare when we have visitors and will bark, growl or simply go into panic mode, urinating or defecating as she does so. If somebody stays, she will look more settled, but constantly has one eye on the visitor and will fly if they move or stand up. At the weekend, she went for my ex-partner and nipped at him agressively as he just stood there. I am at my wits end with her as she is the most loving of dogs when she is with us but introduce anything new into the mix...
I would really appreciate any advice you have. She lives in a calm environment is very loved and I want to help her. I am torn between continuing to try to socialise her and lead a 'normal' life, but at the same time reluctant to have people round as she appears so aggressive and traumatised at the same time. I tried training classes but she was in a such a heightened state of anxiety during the classes that even the (very experienced) trainer admitted she had never seen such a nervous dog and we gave up. She also goes for other dogs, despite seeming to have lived quite happily with other dogs in her early life. Is it time to call in a behaviourist or is there something I am missing with how I am dealing with it all?
I'm sorry for such a long post. Please feel free to ask any questions if I haven't been clear about anything.