Just to enumerate your problems-
You have excessive weight gain
Oligomenorrhea(periods scanty,>35 days)
Low ferritin levels.
With the above mentioned problems, PCOD
as well as thyroid disorders should be ruled out.
Hair fall could be due to Pcod, thyroid disease
, low ferritin levels or even severe dandruff
. However the constellation of symptoms and pattern of hair fall point more towards Pcod. You need to consult a gynaecologist as well as dermatologist
for the same. Once proper assessment based treatment is started you will definitely have good response. Take care.