A period that comes regularly every 26-27 days but lasts only 2-2.5 days can still be a normal cycle, especially with normal
thyroid,
prolactin and
AMH. Flow duration varies between women on its own.
Next Steps
Since you're not trying to conceive right now, tracking your cycle for a few more months is enough, and you can revisit your gynaecologist if the pattern changes.
Health Tips
With your PCOD history, do mention it if your flow gets much lighter or periods start spacing out further.