More anxious in the house than I am outside?

The last few days I've came to the conclusion that lately I've been far more anxious in the house than I have been when I've been out, which is a strange turn of events. Today I never got to the shop before it closed so about an hour ago the dog was due his last walk and I thought a way to keep things going in the right direction would be to walk to the shop with the dog even though it was closed, which I did and again it was pretty much anxiety free. Although it was a bit creepy so late at night as there was nobody around. Here's where I'm confused ... I came in the house and this feeling of dread came over me. I love my house and I always want to get back to it. It has everything that makes me comfortable, but at the moment I seem to be having a problem being in it. I don't know if it's just too quiet or whether it's because I know I'm on my own but it's like I'd rather be out than in. 

When I'm in the house I'm lonely and I get all these anxious thoughts whereas lately when I've been out I've not been so anxious. I've tried putting music on in the background, washing machine, tv ... anything that makes noise to see if this helps but it doesn't. Maybe I just don't want to be alone with my thoughts. I don't really know how to distract myself anymore and then I start to think that perhaps boredom is causing me to have anxious thoughts? My brain has nothing to focus on. I know that a lot of the focus in The Linden Method is centered around keeping your brain busy, filling all your time so that you don't get anxious. For the psychologist, I've had to to keep an activity and rest diary, to see what I do with my day (which isn't a lot!) and then we look to see what activities we can add to it so that I'm doing something every day. At the moment, I'm supposed to be walking the dog every day or 10 mins exercise. Majority of the time I've walked the dog, because that has to be done and I'm actually starting to enjoy it. I can feel my confidence growing and I'm going places I haven't walked in years. I definitely wouldn't have had the courage to attempt walking to the shop if I hadn't been walking the dog every day.

I do feel a bit disheartened that I didn't get into the shop today to buy anything but I did still walk there and for me that's a huge success. In the past I would have gave up. I would have thought 'the shop's closed what's the point?' It would have basically been all black or white. This time I refuse to do that. I want and need to get my life back and that basically means giving myself a kick up the ass and forcing myself to get out and do something. 

Even though I'm not venturing far walking the dog or walking to the shop the important thing is that I'm doing it on my own and I think that's why my confidence is growing. When I go to the supermarket, I always have my Mum (safe person) or someone else in my family with me so I always know there's help there if and when I need it. I can't wait for the day when I can go to the supermarket on my own!