Hello.
This is the first time I post on Mumsnet.
I am EBF my baby and now he's 11 weeks old. He does one big poop once a day and they always look yellow and runny, sometimes there are white seeds. But for the past 4 days I've noticed his poop has got some tiny black bits in it....some bits look like tiny little lines, some are just tiny black dots. They were soft when I rubbed them with a cotton bud.
Has anyone ever seen something like this before please? I'm worrying if anything black in the poop could be related to blood. I've been trying to call my GP first thing every morning to make an appointment, but they kept telling me that they are full :(
I have pictures of his diaper.... if anyone is curious to have a look 
Thanks x