Briony, I do that too - go over and over things in my mind, thinking about what I could have said/done but didn't. Usually in the wee, small hours when there's nothing to distract me. Then I have another confidence blip, that stops me getting back to sleep! That's when I reach for the Rescue Remedy Night.............
Yep, Rescue Remedy and turning the radio on usually does it for me. Failing that, I try and get the cat to come and give me a cuddle without OH waking up and moaning! 
Yes, I used to rely on our little puss to give me a cuddle, too, Briony. She was put down in April last year and I miss her like hell for things like that. Sniff! Nothing quite beats a furry, purring moggy for dispelling the blues.............
