Re: When is it time?
An ACTH or LDDS test is usually done to determine cushings, with an LDDS sometimes being able to tell if it is pituitary or adrenal type of cushings.
Either way if you aren't going to do surgery, which at 14, you most likely would not, then the treatment would be the same. You basically run a full blood panel and urinalysis/culture to rule out a UTI. The blood work should be able to rule out diabetes as you have already done and if you look at it and can see if a thyroid panel was run, you either can or cannot rule out thyroid problems which have the same symptoms as cushings.
If you have had the blood work done and can tell us what was high/low on the test (with range) then we can certainly help to talk over options.
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Sharlene and the late great diva - Molly muffin (always missed and never forgotten)