I have a Rooney 1/1 that is 6 to 8 weeks old. I absolutely love the brush, but have noticed that is has started to lose hair. I'd say it probably started a couple of weeks ago. Thus far, it has not lost much: maybe 10 or so strands. Is this normal? I'm not overly concerned, and I think it is normal. I just want to make sure. I'm paranoid that I'm abusing the poor thing.