Lining of my uterus is 30mm

Hi everyone

I was just wondering if anyone can ease my mind.  I was told yesterday that my uterus lining is 30mm thick.  I am 50 years old and I think I am perimenopausal.  Hadn't had a period since Nov 23 until the 5 February 24, I was extremely

heavy until the Tuesday after Easter when it stopped.  I am waiting for a referral for a biopsy.  Can anyone advise please, I am worried sick

Thank you xx