PCOS and adrenals

Hi. I was diagnosed in 2006 with pcos after a scan and blood tests. My brother had a diagnosis of celiac disease last year and my mother has a diagnosis of hypothyroidism.

I have been prescribed metformin due to absence of periods. I'm wondering if my hormone imbalance could be addressed higher up the chain by adrenal support rather than metformin which I think only addresses insulin (does this have an impact on progesterone and testosterone and estrogen too?).

My progesterone and estrogen are low, but testosterone is high and initial tests suggest I am not insulin resistant (glucose blood test) - but I've been diagnosed with polycystic ovary syndrome despite eating predominantly low GI and gluten free - will metformin help rebalance hormones or is it in fact adrenals which need support / help / looking at? I'm also wondering whether my mum would have had a pcos diagnosis if she'd have been tested at my age, and this has now manifested itself as hypothyroidism in her mid 50's...

I'm nearly 35. I have a son conceived naturally in 2011.

Help!