.......No, but on a more serious note I think we all have days/nights like that. Usually happens to me in conjunction with selling off records I've had for 25years so I buy some more. Shopping therapy is not the sole domain of the female species as we well know.
Also has helped when I've jumped on a train or scrounged a lift to a venue I've never been to before...it sorta freshens things up and you'd be suprised at the peeps you'll know once you get there.
Another tip.......go back and listen to some great Motown records. Recharge your batteries.
It's like if you LOVE eating meat & potato pie chips and gravy and you have it every weekend for 30years you're bound to get an odd chippy you don't like or a flush of indigestion.
I feel for you and hope you're smiling again soon.
Try some of the above......If that doesn't work try my first suggestion.
Regards Kev