I have noticed that my boy has started shivering every now and then. It's not constant it will happen for a little bit and then go away. It seems like it is in the evenings mostly. I believe it may because he is eating feces... again. When he was a pup he ate poop from my older female which I no longer have. He is now my only dog. He didn't eat it for a while and now I notice he started again. Before I tried pills from the vet, meat tenderizer, and other options. It didn't seem to work and one day he just stopped. Well now like I said he is doing it again and it seems like it is also in the evening. It is hard to keep my eye on him. He knows he isn't supposed to do it. If he does it (or anything else wrong for that matter) he goes straight to his crate and stays there until I call him. Well my question is can eating poo cause the shivering? It seems to be only an evening/night habit when it is dark and I can't see him (he is all black, almost). Suggestions? Also for some insight he has had to deal with my ex and I splitting up and her moving out, my other dog being "adopted" and other major life changes.