I signed up on this forum because of this thread. I have become so lazy and apathetic to life.
I never used to be this way, I used to be highly motivated. It's almost like a learned behaviour that I've developed. I keep telling myself it's because I eat poorly and don't exercise. Which is probably partially the problem. But I know tons of people who are even more unhealthy who are still motivated to do stuff.
Judging from all your posts there seems to be some kind of connection between the lack of motivation and social anxiety, as well as maybe depression. On most days I can't even bring myself to do the things I love, like play guitar. They all feel like a chore and I get this feeling of dread whenever I think that I should play guitar, or go exercise, meditate, do school work, read, etc.
The only thing I seem compelled to do is to distract myself with shows and video games. They take me away from this awful lifeless feeling.
Also, when I seem to be doing better, I seem to subconsciously sabotage myself. So if I go for a few days of eating well, I suddenly just randomly screw it all up by eating junk food and drinking alcohol.
Anyways, that's my experience with this whole business. I'm trying to reclaim that drive, that passion for life that I used to have, despite having social anxiety.