My 10 yr old, part Jack Russel dog seems to be constipated sometimes. Do you know what I can do for "Minnie"? She mostly sleeps all day. We have a 9 mo old German Shepherd puppy (bout 40 lbs more) who wants to get her to run (she does if chased) but just growls at or tries to bite "Candie" if she comes near. Perhaps just sleeping all day 'helps' to cause it but is there something safe I can do/give? Do you know, I mean