two months ago I've found ACTH (and Ferritin) marginally over max limit while blood cortisol normal.
Salivary cortisol was normal, though on the low side for the day
Urinary cortisol 24h average was normal, so is blood cortisol taken this week but ACTH increased even more.
What could this be? Addison? Might be the intensive exercise? (but wasnt that excessive...) The stress at work? (it weighs a tone sometimes...)