My reply is a little late because I had to ask permission to post the 
following:
A friend of mine has the same, and she has also heard from several 
mothers at ABA (Australian Breastfeeding Association, sp?) who had 
syndromes as if they were at the end of their menstruating time 
(sorry, can't come up with the English word, in case one of the other 
Dutch members does know, the Dutch word is: overgang).
She describes that for the first 3, 4 months she experienced a 
'black' feeling coming from her toes, as if she was in a bottomless 
well. Possible causes that were mentioned to her: blood sugar, blood 
pressure and hormones.
It returned with the  first few menstruations, but went away again. 
She also tandemfed, so it didn't put hér of!-- 
Heleen Hayes
www.xs4all.nl/~hhayes

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