I had this happen a lot, then I was zapping around the TV aimlessly for hours.
It turned out I was out of energy. Mental battery empty.
One of the biggest changes was - I trained myself to have rest days where I do "nothing" every week (that is "nothing which taxes me. mentally", so also no meeting with friends or so). As long as I have enough energy left, I can compensate for a lot of stuff - so I make sure I have enough energy. (Playing on the console is fine, watching TV is fine, cooking is relaxing me, even doing a limited number of chores)
Those undestimulated days are rare now, compared to 4 years ago.