[taink]

This 'general tiredness' you're referring to seems to be linked to depressive states, whereas the blog post is more about exhausting yourself by trying to solve every little challenge you come across:

> Another key observation is that this tiredness I’ve been feeling is different from depression. I’ve experienced the latter in the past on a few occasions and while there are similarities in how they impact your life, I’d put them in different buckets. If only for the reason that I haven’t encountered these current experiences before.

Maybe it's a little bit of both; lack of motivation gradually eating at your reserves and transforming you into a generally tired person.