Heh Stella.....she is already here with a post.
http://www.medhelp.org/posts/show/726978
:) :) :) :)
See another Endo who knows whats he's doing and if not an Endo, then a PCP.
Also get bloods done regulary to assess whether she is on the right dosage of T4 meds.
Was her Hashi's diagnosed with an antibodies test?
If not, then ask for full thyroid blood count to be done along with a WBC to be done to make sure nothing is happening anywhere else (liver, kidneys etc).
Keep being assessed until the levels are stable.
Good Luck.