This sounds like burnout to me. I am in my mid-40s and used to have spells like this, but no more. I needed some kind of large change, back then, to get myself sorted out, but this could be pretty destructive because if I waited too long, the change I'd need wouldn't really be conducive to staying on whatever project I was on. The key to not having to deal with this problem anymore, for me, was starting to proactivel…
Burnout has become such a catch-all term as to be effectively meaningless by now. In our professional lives, we are used to set quantified KPIs in a SMART way, and I wonder, why is it that our expectations are so comparatively low in our personal lives?
If you can phrase explain your problem in those turns there is a good chance it is burnout.
If not, it might be depression or something else.
In answer to your question though, speak for yourself. My personal goals are far more ambitious than my work ones.