jajaja.(@him) That's the funny thing! I never got to 38 days, Ambler, but in my 29 days, with lots of spitting up of salty saliva (and post-nasal drip) i remember that undercurrent, that existed even at the same time as the absolute 'oldness' of stuff...and that weariness.
Take it by the hour. every one of them is now worth many, in terms of cleansing.