Best to ask these details in the adrenal forum. Or just do that test over again due to its odd result.
Could it still be pituitary? Or just missing a high if it's cyclical? I have the saliva tests on my wish list but we haven't gotten there yet. What would it mean for it to be that low? Faulty lab work?
It means you most likely do NOT have Cushings (hyper adrenal). Suppressed is supposed to be good, but you're off the chart. Decimal in the right place? Might ask in the adrenal forum.
Ever tried a 4 point / 24 hr saliva adrenal with DHEA test? Insurance wont pay the $150, but its a good test.