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house trained jack russell started peeing inside..
My 2 & half yr old Jack Russell has been house trained since a puppy, recently he has started peeing inside at 1st i thought he was having trouble holding it but then last night he was left in the car for 1-2 min when i c him with his leg up & his peeing (a lot) then i wake up this morning to another big pee inside.... he is walked for at least 3hrs everyday as my work involves walking & i take him everyday. Then at night before bed we go for another 30-45 min walk.... any ideas if this a bladder problem or behavioural problem? all help greatly appreciated...