Eating too much, not gaining the weight
First....I DONT want too hear my kid is being fed too much. I realize this, that is part of why I'm posting this.
I overproduce, I started working last month, have since stopped but should start again by September. While working I pimped 3 times daily, 1x before, 1x during and 1x after work. Up until the last week I produced around 5oz - 7oz each time (so 15-21 oz total for the next day) the last week i started pumping 9oz each time. From 9:30 am (he was fed around 630-730 from the breast) to 330-430 pm he would eat ALL the milk pumped (from a bottle of course). I would then pump when I got home and feed him somewhere from 530-630.
He then got fed from the breast the rest of the night. We don't co-sleep, with the exception of a few hrs a night, only if he doesn't sleep all night. He is fed on demand, but it's me pulling him out of bed to feed, him sleeping with me for a few hrs and then being put back in the crib or staying with me until I get up depending on what time he gets into the bed. Total feedings from the boob are probably 5 or 6.
We started feeding solids on a regular schedule mid July, we tried some in June, but now it's everyday. I just can't keep up with him. He's gaining weight but not the way you would think with the way he's eating. He's gaining MAYBE 1/2 a lb a month, if that. He didn't gain any weight for over three weeks, he actually lost weight.
my question is, do you guys know of anything that could cause such an appetite with such little gain that I need to ask the doctor to check? He's growing height wise like a weed though. 6 months old Tuesday and he's already grown 8 or 9 inches,