Underactive Thyroid
"I used to be on Armour...then it was unavailable for a while since they were reformulating it.  I don&#039;t know why they had to reformulate it.  It was working fine and is an old reliable drug.  After the reformulation, my side effects (that I didn&#039;t have before) included my feet cramping at night.....often.  Changed to Nature-throid and don&#039;t have that problem."