I would say a combination of lifestyle and mental aspects. I do enjoy programming still, just not everything else that comes with it. Agile, meetings, business requirement documents, more meetings...

Something I have had trouble with is finding purpose - I work at a government agency, and I feel my work means next to nothing (for various reasons I can't get into).

I did manual labor for a while during university, and the sedentary nature of my current job may be contributing to my decreased interest to carry on with it.

Firefighting looks like something I'd love to do.