Trying to unravel the causes of PCOS is like trying to find the start of a mobius strip, with conditions and symptoms continuously looping back on themselves.  It’s a “chicken or egg” scenario, but in this case you start to wonder if maybe it was actually the chicken coop that came first.  Or that bag of chicken feed.  Or perhaps even the friendly farmer down the road who first put it into your head that owning chickens would be your jam.