It appears that neither of the descriptions i linked above are implemented in the mod. (At least, they don't seem to be viewable by any means I tested.)
I used the debugger mode to fill bladder/bowels, as well as chocolate cakes to see if it was simply a much higher threshold than expected, as well as testing both accidental and manual use.
https://github.com/zippity21/Stardew_Valley_Regression_Mod/blob/5daa8503034659b0b2933d4c3f062894843a1eef/Regression/en.json#L527
https://github.com/zippity21/Stardew_Valley_Regression_Mod/blob/5daa8503034659b0b2933d4c3f062894843a1eef/Regression/en.json#L534
It appears that neither of the descriptions i linked above are implemented in the mod. (At least, they don't seem to be viewable by any means I tested.)
I used the debugger mode to fill bladder/bowels, as well as chocolate cakes to see if it was simply a much higher threshold than expected, as well as testing both accidental and manual use.