anyone else feel this way sometimes
yes, on occasion we all do.
There is no right time, Mike, nor is there any time..it is in our blood. Find a new challenge...renew a rating, get a checkout in something new, become an A/G operator, take up paragliding (or even gliding). Get a permit whizz-bang that you can service yourself, or whatever.
Yes, perhaps an attack of the vapours, but what else are you to do? Take up fox hunting?