Hey Misty,
Sorry I missed this. How is little Jamie doing tonight? With Mango, I have been alternating between the ecollar and the onesie. She sleeps in the latter at night, because I think the collar would be really uncomfortable for her. The main thing is to keep them from irritating the incision. Mango simply hates clothes, so I hope you have better luck with Jamie.
About the constipation. My Vet told me to mix a half teaspoon of any vegetable oil with her food. I have been afraid to try this because of her vomiting, but if Jamie has not been throwing up, I would give it a try. It has SO worked before when Mango has been constipated.
Is he still wanting to drape himself around his Mama's neck.... I can just see that cute "Yorkie Collar"

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Hope tomorrow is better for him, and the next day even better so.
Big hugs for the night,

Lauren