Pip is poorly. 
He started retching as if he was going to throw up, I tried to usher him out of the living room at least onto the tiled kitchen floor, but he threw up an unfeasible amount of what looked like pure undigested kibble all the way across the room. It looked fine, just like he'd perhaps overloaded his stomach (we've been increasing his kibble to chicken ratio and he went onto just kibble today) so I didn't stop him clearing it up, as I know that's pretty normal for disgusterhounds. (Obviously I then disinfected the carpet anyway.)
Unfortunately, he then started to whine frantically and ran to the back door - shot up the garden like his life depended on it and literally fired diarrhoea across the lawn with incredible force.
Followed by a major case of the zoomies - I think in panic at what just happened.
Checked it out, not sign of blood or mucus, but I've had to bleach the lawn, so that's going to be an interesting stripe.
He the curled up in his bed whingeing for a while, but has just been charging around the garden jumping on Lurcherboy's head, so can't be feeling that bad.
Have given him some probiotic paste and will go back to just chicken for a couple of days. He's due at the vets for his second vax on Wednesday - praying they don't cancel it again now.
I was saying to dh last night that the wind Pip was emitting smelled like raw chicken and I was worried it might be the campylobacter building up again - then this. Will keep a close eye on him this evening and if it happens again get him straight to the vets.