My 3 year old yorkie's urine has been very dark amber in color and strong smelling. We have changed food recently but my 1 year old does not seem to be affected. He does not drink as much as so I just wonder if it is more concentrated? Is this one of the first signs of infection? He really does not pee pee more than normal (I don't think...what is normal?) He is litter trained and there is always urine on pee pee pad when I am away at work. The other pup holds it until I get home. Any suggestions
