I have been thinking about this ALOT too...about a week ago we went for a long walk, probably the longest walk Pixie has ever done (she's 8 months and around 3lbs)) we were out for about an hour and she was doing alot of running on her harness, putting pressure on her back legs, later that evening I noticed she was limping a little, seemed to be her back leg...the next morning she still seemed sore..on and off...I started to worry and straight away thought...LP
the second day she was fine again. I haven't walked her very much for the past week..only short walks..and she's too little to jump on/off the furniture, She has been fine since, maybe she just did a little too much exercise and was a little sore? but i'm watching her closely.
My thoughts are with those who have babies with this condition...speedy recoveries to all. x