Hair has been thinning for the past 8 months (19M)

Took a blood test roughly a week ago and added the relevant results

Vitamin D 21.9 ng/ml TSH 3.3 uIU/ml Thyroxine/T4 7.6 ug/dL Hemoglobin 15.9 g/dL Hematocrit 47.3 Calcium 9.8 mg/dL

Can add more details if it would be helpful