This evening my 13 week old son bought up a little black granule looking substance in baby sicky posset, looked a little like soil or filter coffee. Only once and total amount of black stuff in the usual curdled milk was about a thumb nail. Otherwise feeding, nappies, temp, mood, sleep all normal. Doctor via 111 not concerned. Said sometimes a slight irritation in tummy can cause a little bleed. Baby is exclusively breastfed. Feeds well, no known allergies. Has asked that I call GP and paediatric dept tmrw to discuss. In case in makes a difference, my son has Downs Syndrome, but doesn’t currently have any health problems we’re aware of. Anyone had experience of this before?