No ACTH serum. But my knuckles, elbows, etc are darker than the rest of my skin. Any scars that I have are dark as well. People who have not seen me for a while notice my nice tan as well. No one else in the family has that odd darkening of the knuckles, not even my kid brother who goes surfing every weekend.
I am open to the idea that my base needs to be at 30+. What increases my suspicion, is how well I tolerated being on licorice for over 10 years. No hypertension or water retention. My tan also went away. I stopped the licorice after starting testosterone. Now the tan is back. The reference ranges are obtained by the values observed in the sick, but not yet dead. I got into the world's biggest pissing match with the endo about total T reference ranges.
I am open to the idea that my base needs to be at 30+. What increases my suspicion, is how well I tolerated being on licorice for over 10 years. No hypertension or water retention. My tan also went away. I stopped the licorice after starting testosterone. Now the tan is back. The reference ranges are obtained by the values observed in the sick, but not yet dead. I got into the world's biggest pissing match with the endo about total T reference ranges.