My nearly 15 week old DS has been ebf. Lots of initial problems (for me, latch, pain, cracked nipples) but battled through, with good weight gain for DS. Had posterior tongue tie diagnosed and revised at 10 weeks. This seemed to fix pain for me about 70/80% - some good days, but still some bad days. At 12 weeks I decided to introduce one 3 oz bottle of formula (aptimil) in the afternoon, to give my chest a bit of break and to start process of weaning off me.
Immediately DS went from yellow poos every 2 or 3 days to 7 or 8 explosive green poos a day. Decided to keep giving the formula for a while longer to see if things settled down, but after a week and a half or so, poos continued to be green and explosive. So I stopped giving the bottle of formula and went back to ebf. However after 6 days, poos have continued to be green and a bit mucous-y, though slightly less frequent and explosive.
Today he's i've just noticed a couple of small streaks of blood in his nappy. Grateful for any advice about what this could mean - could the formula have triggered something in his system or could it still be working its way through?
I've considered there might be an oversupply issue and am making an effort to only feed on one side at each feed. My diet has not changed and there is no history of any allergies or intolerances in either me or DS.
He's gaining weight well, has no problem sleeping, doesn't sick up milk much and generally seems to be content. He does seem to feed quite freqently - more like 2 hourly most days rather than 3 hourly or more. He usually wakes twice at night, but sometimes only once.
Before I saw the blood this afternoon, I was going to try a different brand of formula, but now I'm reluctant to do this
Grateful for any advice or experience of what this problem might be? thanks