Weaning off breastfeeding and hair loss ? Help!!

Maggie
I lost hair from 3-6 months post partum which was totally normal from hormone changes. My son weaned himself off breastfeeding very quickly at 9 months and since then I've experienced uncomfortable levels of hair loss from 9 1/2 months to now (11 1/2) post partum. Thyroid levels were checked a month or so ago and were normal. Anyone experience this ?! Help !! My Ob was very unhelpful.