" With breast growth there is often an increase in milky discharge from
the nipples (galactorrhea). This is caused by estrogen stimulating the
production of the hormone prolactin, which in turn stimulates breast
ducts to form milk. It is not known whether this increases the risk of non-
cancerous tumours of the pituitary gland, which produces prolactin
(prolactinoma). Although prolactinoma is usually not life-threatening, it
can damage vision and cause some headaches. For this reason, blood levels of
prolactin may be checked for a few years when you start
taking estrogen, and further tests may be ordered if prolactin levels are
very high or if prolactinoma is suspected."
I'd say just talk to your doc.
*hugs*
