Hi Pearl,
        This baby you're talking about seems to be gaining fine to me.
6lbs2oz to 8lbs is a gain of 30 oz in the 42 days of her six week age that
equals .7143 ounces per day of gain.  Which, if you're following the
recommended guideline (I'll cite the Breastfeeding Answer Book, LLLI, pgs
118-119) of 4-8 ounces per week, she is right there at 5oz. per week!! I
don't have a chart in front of me, is 8lbs below the 30th percentile for a
six week old? Even if it is, if she's continuing to gain at a this steady
rate and all her other markers are on target..ie, she's making appropriate
numbers of wet and soiled diapers, the bowel movements are nice breastmilk
mustard (as opposed to greenish and stringy which might suggest
hindmilk/foremilk imbalance), she's alert and happy, skin tone is elastic,
fontanel is not sunken, mucous membranes moist, length and head
circumference continuing to grow... If all appear fine what exactly is the
MD so uptight about?
        There is a growth chart for breastfed babies -- I've hunted and
can't find the citation in my disaster, but it's by Dewey and was published
in '95. I"m sure someone has it handy. This baby is sounding like a typical
slow but sure gainer... she's not failure to thrive, just putting along.
        Sudden drop off in her gain, mother reporting "less milk" or more
problems with feeds would be red flags... but otherwise...

        I made a chart on this for our local peds... i'll try to dig it up
and post it.. it's a good reference tool and quick check for regaining
guidelines.

anne

Anne E. Robb