We think we have figured it out. He's got some kind of virus and don't think its the prostectomy after all. Sniffling, stuffy...that kind of stuff. Its not a good time for this but I would rather it be a virus than something to do with the surgery!
I've got him on tylenol and advil and watching him like a hawk. I might even be driving him crazy! :)
Thanks to all for your well wishes!!