Ok, my RB Puddy had a blocked colon, too, filled w/feces and my vet kept pressing on her abdomen to help to get it all out. She finally went in for surgery but not for that and he cleaned her all out while she was in there. After that, he told me to sprinkle Forti Flora, a probiotic, onto her food and she never had that problem again. I'm so glad that your vet was able to figure everything out and, hopefully, Luna will be herself in no time. I hope you get some rest now. (((HUGS)))