Dear Kellie,
It does sound like a let down problem rather than a produciton problem.  This
woman has been through some very traumatic events in her life and maybe they
are catching up with her now.
The syntocin gtts would be a good start but Reglan is for production and would
do nothing to the let down.  Another approach which might be easier than the
gtts is to suggest acupuncture.  I heard a lecture from a acupuncturest and
she said let down problems would be helped.
The idea that this mom may need some psychotherapy is also a good idea but may
not be your position to offer, you know best what your relationship is with
this mom.
Good luck with the case and keep us informed.  If the let down problem is not
resolved soon there will be a production problem.
Ann Perry RN IBCLC