Originally Posted by
FreeOwl 
And despite about 6-8 cups equivalent.... Still exhausted
Yikes.
There's a 12 Step program for that.
Or there should be. It sounds like caffeine has stopped working for you. Rehab? IOP? JK, I know it's affecting you. There is no way I could drink 6-8 cups of full caff coffee and stay sane.
Half caff espresso, all the way. Weaning may be in order to avoid withdrawals. WD from caffeine is awful.
You can do it.