I seem to have missed the beginning of the migraine discussion but I have had
migraine headaches for years.  In the first year or two of nursing each of my
six children I would get migraine- like spasms each time I would have a MER.
 Sometimes it would trigger into a full blown migraine and sometimes it would
just quiet down after the MER.  Since oxytocin causes contractions it seems
logical that any sensitive muscle could contract.
Ruth Solomon, RN,IBCLC