Geez, I hate when ya don't know what way to turn. I spent a weeks pay the week or so Lacey was sick. They tested her for Cushings. By the time the tests came back almost a week later(they had to be sent out) the vet told me 1/2 came back ok and 1/2 was 'iffy' and they should run the tests again. She told me this over the phone before I told her Lacey was fine.
I'm not advising you not to do the tests, you have to find out what is wrong. I really didn't care about the money spent, we were so happy Lacey was ok.
I will keep Romeo in my prayers and will be watching this thread for updates.