*Pic included* Foremilk poop or dairy allergy poop?

[oedipamass]

I was hoping some more experienced BFing moms could help me diagnose this...

My EBFed 6 week old has consistently green, mucus-y poop. Does this look more like a fore/hindmilk imbalance or a dairy allergy? I'm thinking it's one or the other with his symptoms.

 

[summer rain]

What other symptoms are we talking as on it's own that poo doesn't look abnormal or even that green (though that could be your camera or my phone screen). Foremilk/hindmilk imbalance would make the stool very green like grass green or even greener than that xx

 

[oedipamass]

Summer Rain: Thanks for replying! Other symptoms include: coughing/slight gagging during nursing, gassiness/belching, forceful spit up after every feeding, red irritation around anus, slow weight gain, congestion (baby struggles to clear throat all night while sleeping), and many frequent explosive green BM's

I should add that sometimes the poop looks like pieces of steamed spinach, drier and more fibrous than the picture I posted.

Because of his slow growth in the beginning, I'm a little afraid to mess with block feeding if that's not what it is.