Can someone explain the process behind this?

[Jabberwocky]

I’ve noticed that If I begin to vape small amounts and increase the intervals throughout the night I don’t get bad anxiety unless the interval dosage is a little too high, also in the morning... when I wake up I don’t get that stressing anxiety either Could this be due to cortisol ? I’d like to keep this up as it’s helping me stay off oxy but I’d prefer not to be high all day just to do that