BF baby and weird-ish poos

[JamInMyWellies]

My 16wk DS2 is BF with one formula dream feed.He has had some odd poos over the last few days not mustard seedy. Tonight he had an almighty explosion which resulted in lots of poo which was dark yellow. Is this ok dont remember DS1 having poos like this.

i'd say it's ok. ds2's were all colours and textures

Thanks thisisyesterday.