Poppy30 - We will be following this thread, as our almost 2-yr-old Tego is showing much the same behavior. I have been studying Brenda Aloff's caninie body language book and learning to recognize some warning signs, which helps. Highly recommend it. The constant state of alert, even when I thought she was sleeping is startling.
In other posts, this knowledgeable group always seem to want to know:
Is Poppy getting enough exercise?
What is Poppy eating?
Have you done any obedience or other training with her? Impulse control, tricks, leash walking?
Has Poppy been health tested - hearing, eyesight, overall health?
So maybe answer those for more responses? Folks here have been great at providing advice and suggestions. Looking forward to their guidance for sure. luck - dnb