The desire to breathe is driven by excessive CO2, not low O2.
Thus, as CO2 ⬆️so will your arousal, anxiety, & panic.
This is why you perform high-precision motor tasks (shooting a gun, arrow, basketball, etc.) immediately post-exhalation; when you're most calm & least figgity.
There is NO HUMAN EVIDENCE that artificial sweeteners increase food intake
There is NO HUMAN EVIDENCE they damage the gut microbiome
There is NO HUMAN EVIDENCE they affect glycemia
There is NO HUMAN EVIDENCE they lead to fat gain. In fact, several studies show the opposite