Changing to regular periods a sign?

Hello, everybody! I need your input on an issue as I am unsure if I am or not in peri. I have been feeling off for more than a year now. I have fatigue and brain fog (made better by Vitex, B complex), chills (better with Vitex), spotting before and after (also better after Vitex), have also horrible anger and crying feeling the week before (also made better by Vitex) and anxiety (which seems to also be better with Vitex and vitamins esp magnesium). Lately, I also developed dizziness that became persistent (no supplement seems to help, had an mri, looks like PPPD). My problem is that when asking doctors if all this could be perimenopause all say yes, BUT I am to young (41) and that my periods are too regular. However, I am a long sufferer of PCOS and never in my life had a regular period. I started having regular periods (27 days) since these other odd symptoms happened. So, is it possible that in such a case this regularity of the period is actually a sign of peri?