Slimy poos?

[soph77]

I am wondering what is going on with my baby's nappy contents!

My LO is 4 months and EBF.  He had his 4month jabs last week and did the grossest black/dark green poo the next day which I am assuming were a result of the shots.  Has anyone else seen this in their nappies?

Also I've noticed that lately, more often than not his poos have been slimy yellow/greenish and not the lovely normal mustard seed BF poos.  I've done a bit of reading and come up with some conflicting reasons why he might be having slimy poos: allergies, extra drool from teething, infections, fore/hind milk imbalance.  I don't think any of these relate to us. 

Allergies - no solids yet
Teething - while he can be pretty drooly sometimes, i don't think we are teething yet
infections - seems fine
fore/hind milk imbalance - feeding, sleeping and putting on weight well

But these poos, kind of freak me out.  Has anyone else encountered slimy poos and all was well?  Or have any ideas what they might be from? 

[Roseii]

Did you have anything different in your diet maybe?
DD2 was/is MPI and had mucousy BMs but it did start earlier than 4mo..

[soph77]

I can't think of anything new I have added to my diet except I have started taking stool softeners on the advice and OK from my doctor.  I have an appointment with the baby nurse on friday, if it continues I will mention it to her