Symptoms of loneliness : an undefinable pain in the chest that wont go away.
If it makes you feel any better Den I do live in the same country as you. Near Melbourne.
Have you had your B12 levels tested? Sometimes if the level of B12 is too low then it can mimic Chronic Fatigue. I get really tired too.
I live on my own but try and get outside even if its just to get groceries. I have also pushed myself to go to craft groups. They don't go for too long. When I find I have had enough its okay if I leave.
Sometimes I feel like loneliness is an emotional cancer.
You might be lonely Den but you aren't alone.