That's just because he's "bouncing".....Bounces happen because they 1. drop too low 2. drop too quickly 3. drop lower than their body is used to (or a combination of all 3)
In Ravan's case, his body has become used to living in those higher numbers, so dropping into what is a "normal" number (or even a lower one like 162) feels wrong to his body and his liver releases stored sugars and hormones to bring him back up to where it's "used to" being......he "bounces"
It can take up to 6 cycles (3 days) for those hormones and sugars to clear back out of his body, so we don't want to increase just because he's in a bounce.
As his body re-learns that it's OK to be in those better numbers, he'll hopefully stop bouncing as high and when he does bounce, he'll clear them faster
It's totally normal and in some ways it's good....at least you know his liver is in good working order!