I Have Had Everything Checked, My Blood Tested At Least

I have had everything checked, my blood tested at least 6 times within the last year. That includes thyroid, hormones, liver, lupus, ultrasounds, dermatologist tests etc, etc, etc. I have lost at least 30% of my hair. I take no meds other than Nuva Ring (one year this Nov. 2016). I take NR to regulate my period. I tried 4/5 other pills but would bleed through them all. I was literally getting my period every 18 days or less. My hair loss began three years ago but has been worse in the last year. I don't know what to do. I need the NR to regulate my period but feel it could be responsible for my significant hair loss within the last year. Any advice?