Hiya Nix,
My Aunt is a Reiki master, when Zippy first got poorly back in feb, I took her over to the emergency vets as she was really quiet, but was eating and pooing (it was on the weekend), anyway they checked her and said there was nothing wrong with her and it was in my head basically. I took her to my aunt who performed some Reiki on her and she said she's got a pain in her head (pointed out where it hurt) and it was upsetting her.
On the Monday I took her to my own vets who checked her and found she had missing teeth at the back and the one set of teeth were growing up and touching her gums. It was on the exact place where my aunt had said it hurt her. My aunt knows nothing about buns and teeth so it wasn't even an educated guess.