I’m a grower and my family has bad circulation genes too. I notice if I’m at the gym, playing sports, about to fight someone, or on drugs it’s smaller than normal. Not so sure about weed if it’s smaller or not then but it seems smaller on shrooms or acid. It’s probably bigger when I’m drinking alcohol though.
No not with weed or anything that’s a downer although weed is technically a stimulant. Anything that messes with circulation, coke, ADD type meds, E, and so on totally shrink mine it’s called speed dick. And when I came off oxy and went into withdrawals it happened. I now realize it was because of adrenaline and my brain trying to produce its own chemicals without drugs. That’s what brought me back to PE I was really upset with what my dick looked like. Funny thing tho…on oxy my dick would get really big and stay that way after sex for awhile. Unfortunately I always had I hard time cumming on it.