The bloat from non aromatizing steroids is probably from two things, 1st stuff goin on via the kidneys.
2nd glycogen retention, naturally for every 1 gram a glycogen stored, the body stores 3 grams of water.
Glycogen retention is increased so water retention will be as well.
Most guys associate losing their gains in pct, when in reality they’ve just lost the extra water the body was storing.