Hi Mel,
As Lisa said, it sounds like Tali is constantly on high alert and is unable to relax. It's a bit of a vicious circle (I know because I've been through it in some situations with Louis) and it will continue to feed on itself until you can find the key to help him relax. I'm sure it's all down to the changes that have happened this year.
I think a good behaviourist could really help. I'll PM you about a London based one that I've met at a couple of seminars who I think has a real understanding of stress in dogs.
Going on to a couple of the specifics you mentioned -
Squirrels - William is totally obsessed and I won't walk him in woods where I know he'll see squirrels because he just loses his mind and has to run, run, run until he's exhausted. It's like I don't exist and he neither sees or hears me. We used to have the same problem in the garden. William would be on high alert in the house, watching the bird feeders, then running outside to bark and chase. I almost gave up feeding birds then discovered this
http://shopping.rspb.org.uk/squirrel-buster-plus-feeder.html which cost an arm and a leg but I've had it for several years now and it's more than paid it's way. It really is squirrel proof and after a few tries at it they give up in frustration and don't come near it. I still see plenty of squirrels in the woods at the end of the garden and on my neighbour's bird feeders but not in my garden. It's one of the best things I've ever bought and stops William from stressing about squirrels.
Pacing etc. when you're watching TV - Is this just in the evening? Louis seems to think that early to mid evening is playtime and is restless after he's been fed if I sit down to watch TV. He paces up and down and constantly watches me, although not every evening thank goodness. I try to pre-empt the behaviour by having a short play session with him and/or giving him something to chew that he doesn't have access to the rest of the time.
Have you heard of Karen Overall's Relaxation Protocol? I printed it off the internet a while ago after somebody recommended it for Louis, but haven't got stuck into it yet. It looks a bit daunting because there's pages of it but it's actually just a series of simple exercises to go through with your dog to help him learn to relax.
I think the key to all of Tali's behaviours that you've mentioned is relaxation and if you can get him to learn how to relax he'll be much happier and a lot easier to live with. Sending you some hugs
and hoping that you can help Tali to settle and love his new surroundings very soon
