low cortisol means you are gonna be tired all time, it cant be compared with either. it just means despite medications, if you're on low side, you'll still be symptomatic and the high part is your heart rate. with steroids, it controls your heart otherwise without, if its too low, its gonna attack your vitals. im lucky too be alive from being low and hospitalised at the lowest three times.
i agree though, im discharged with steroids with an okay range even if im symptomatic otherwise my doctors won't release me and im stuck with an adrenal crisis. high just means you're aging usually so i dont deserve this too early.