Perhaps it might help if mom drinks some more water before bed and right 
before nursing at night. Prolactin and vasopressin are so closely 
related, maybe she's having some sort of receptor competition, and it's 
worse at night because of the prolactin rise then? Since sleeping people 
aren't usually drinking, hypovolemia would exacerbate the problem... 
Just wild speculation here.

Catherine Watson Genna BS, IBCLC  NYC  cwgenna.com

On 5/24/2013 12:03 PM, Carmela Baeza wrote:
> Hi!!
>
> I´d like to comment a case with you all to see if you can shed some light...
>
> This is an experienced breastfeeding mother of 3 children. Her
> breastfeeding experiences with her first two are absolutely normal. Her
> third is a 5 mo baby who is breastfeeding well; the birth experience was
> excellent and breastfeeding has been the same (no pain, good weight gain,
> nothing remarkable).
>
> The only thing is: since baby´s birth, mom is experiencing a strange
> feeling during let down - but not every time. And it is not an emotional
> feeling (I don´t think it´s DMER). During the first days after birth, each
> time she breastfed the baby she would have AT THE SAME TIME AS THE
> AFTERBIRTH CRAMPS a feeling of dizzyness and swooning, almost to the point
> of fainting. Sounds like something vagal, maybe because of the pain from
> the cramps. But after some days passed and there were no more cramps, she
> got this feeling only in the nighttime feeedings. And this is still
> happening to her, five months later. Dizzyness/swooning/fainting feeling
> during let-down at some (not all) nighttime feeds. No emotional feelings
> attached, and the baby does not hurt her. She is always laying in bed when
> it happens. Daytime feeds are normal, even if she´s laying down.
>
> Any thoughts on this mystery?
> :-)
> Kika

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