Normal TSH, low cortisol

I did the 24 hour cortisol saliva test and the results were low for morning, noon, and afternoon.  It was, however, in the very low range of normal by the end of the day.  This wasn't a complete surprise as I feel like c--p most of the day and my brain doesn't seem to find its grove until late in the day.  

My TSH levels are normal and I'm not taking any medication.  What would reasonable next steps be, testosterone test?  (I haven't had that one done in five years.)  I need to do something to function properly and I have to keep deferring matters.

[rumpled]

Can you give the ranges and your results (with the times) as that is more helpful.

Cortisol should be higher in the morning, lower in the afternoon - so actually, low in the afternoon is pretty normal. The morning low is not normal.

Can you see a doc and get a comprehensive check?

[Tomas_B]

8 a.m.  6
noon    3
4-6      "<1"
10 p.m.  2

[pacaplace]

Like Rumpled said, Cortisol is higher in the morning and lower at night, but from all the stats I've read, your levels look pretty low even though they track higher in the morning and lower at night.

[rumpled]

What are the ranges?