And in that whole last week or more where I went with absolutely NO benzo's of any type, I didn't feel very bad WD symptoms at all.
Are you serious?
What I would give to have your genetic benzo-resistence.... not so I could take benzos, but so I could STOP.
It took time, and it happened in a strangely non-linear way, but I'm in a position now where I can taper down to just 10mg of diazepam a day and be OK... but if there's a sudden disruption to the supply, I'm FUCKED. The withdrawals I get now are so insane that I doubt many people would believe me if I described them.
Ages ago, I started to stupidly dabble with benzos on and off for around 6 months and experienced what I considered to be pretty awful rebound anxiety and insomnia. Gradually, without even really noticing, I was taking them every day. Several times I tapered down and successfully stopped - only to start up again a month or two later.
Now it's been nearly three years of daily benzo use. I take the minimum amount needed to keep the horror away, but like I said, even when I get down to really low doses that don't feel like they're doing much if I miss a day or two all hell breaks loose.
Benzo withdrawals get worse and worse the longer you take them. The duration of use seems to be far more indicative of the severity of withdrawals than the amount taken.
You're lucky you got off so lightly. Try and taper down and get off while you've still got that resilience.