DDog has always had a sensitive tummy. Took ages for him to settle when we got him from the rescue but we've found a kibble which seems to suit him and all has been well for last 12 months or so. I suspect this is part diet and part DH working from home so no separation anxiety in the mix. Over the last few months he's had several episodes of waking with the most ridiculously loud gurgling gut, a day of food refusal / grass eating, a few mucousy / strawberry jam bloody poos and then recovery of appetite usually by evening of same day and back to normal poos by next day. He does seem a bit subdued and uncomfortable when it happens. I'm unsure of triggers; it's occurred after he had some chicken so I'm avoiding giving him that now and he can be known to gobble the odd poo (sometimes his own, sometimes not). I have wondered if this is a triggers or a strange canine attempt to self medicate. He doesn't vomit when he eats grass but it does seem to pass through quickly and speed recovery.
He had a course of metronidazole after a recent episode when I took him to the vet but I don't think it made any difference to his recovery and he's had a couple more episodes since. I've also tried Protexin paste but don't think it made any difference either.
Any advice gratefully received,