Last October my 5½yr old toy breed had a dental; teeth cleaned and a few extractions. I don't remember noticing anything like this before, cos I remember when it first started I wondered if he was in pain from the dental (I first noticed it whilst he was eating, in the week or so after his dental). He'd start eating normally, then go down into a play bow and eat like that...often quite slowly and sometimes reluctantly.
Ever since then it's been reoccurring, but infrequently and never for that long. He's not stopped eating, no sickness or diarrhoea and he seems to be jumping about and on/off furniture as normal. Just every now and then he'll go down into a bow (now not necessarily related to a meal) and it seems something is bothering him. He's also often reluctant to eat his "bedtime biscuit" - which can be anything from a piece of dry dog food, gravy bone or something other kind of biscuit - which makes me think teeth, but then is sometimes reluctant to get out of bed which makes me think back (he has to jump a foot or 2 to come out, I was planning to move him to the bottom anyway & will be doing that before tonight)...
I can't put my finger on anything and I haven't even been able to work out where the problem is - neck, back, teeth, something else
This morning the dogs all had those little bone shape biscuits (not an everyday occurrence) and he took his but then lay and guarded it. Nothing else amiss at this point, but that made me think it wasn't going to be one of his better days! I got the dogs breakfast, wormed him (Drontal) because due to an oversight I think he is overdue and then fed them. He has Royal Canin Mini Adult with a small amount of Butchers Tripe on top. He took his tablet no problem (in some tripe), then proceeded to eat all the tripe and a small amount of biscuit before he decided to stop and start this bowing business again. I didn't actually give him chance to see if he would go back to it (he usually does), I picked the bowl up (so the others wouldn't get it) and then picked him up to see if I could pinpoint anything (I couldn't). He went over to the carpet and stayed there in a bow for a few minutes, then he appeared to recover and trotted outside perfectly normally...I went out of the room, and when I came back noticed there were tiny amounts of blood on the floor. Went outside and he'd done a poo, half normal and half bloody diarrhoea...this is the first time I'm aware of anything other than normal poos. The blood is fresh (bright red) but some of it is slightly...how can I put this, rubbery? Almost reminds me of blood a human would get with a period, if that makes sense. So now that makes me wonder if it's gastro related?
Not sure if it's relevant but the thought did just occur to me he covered a bitch in October, so that must have been very near to when it started as well. (Not his first - bitch, that is

)
I'm taking him to the vets again, but I just wondered if anyone else has come across anything like this? I don't really even know which area of him to start looking at...