Hi. I'd also wonder about "basic" things: blood sugar levels, thyroid function, etc. In the bloodwork your rheumie presumably does, does he also track this "basic stuff", as well as the "rheumie stuff"?
Are endocrine problems common in PCOS? Do you see an endocrinologist?
I feel as you describe sometimes myself. Sometimes I can logically guess why---like this week, when 1/2 the people I know are fighting flu-like symptoms...
Anyway, I hope you get insight soon. Good luck! Sincerely, Vee