Liver and toilet issues

Hi! I have PCOS and bad insulin resistance so I started taking berberine twice a day 3 months ago and it’s helped so much, but recent blood test showed my liver markers and iron levels were extremely high. I’m just reaching out to see if anyone else has had similar issues? From my research berberine isn’t supposed to have any effect on the liver, but it’s the only thing I’ve changed about my lifestyle so my blood results don’t make sense if it isn’t that. (I don’t drink or eat unhealthily).

Also, before berberine I used to only poop once a day if that, now I’m going up to three times a day, and it’s always yellow. I’ve heard it’s normal for the first few weeks, but I’m 3 months in and it’s still happening. I don’t want to stop taking it because it improves my daily life so much, but is it a cause for concern?