[yorkiemini]

I'm not a specialist at all, but when my little girl went through a traumatic event (hawk attack) it totally changed her personality. She became very withdrawn and anxious. Took me a year and a half to turn that around, but we did. WhT I learned was that I had to give her other memories/thoughts/experiences that would become important to her. We had done obedience, so I started beginners agility - it was active and rowdy and she took to it - it worked beautifully. I did use anti anxiety medication for about a year then taper off of that as things got better. She still watches for Hawks, but is now her usual playful self, although more reactive then before. But he life now revolves around running through tunnels and jumping all of 4" And of course those treats!

Good luck and I wish you lots of loving patients, but it sounds like you have got that.