Hi, I'm interested in members opinions as to a problem I'm having with a Sheltie, she's nearly two years old and appears very healthy apart from when we go on our daily walk. She's always very excited to go, as dogs are, and she obviously enjoys the first part of the walk but after about 25 minutes or so she slows down, sometimes to almost a stop, then we have to find a place to sit down and rest a bit then we go on. This behaviour is repeated several times until we get home again.
This just seems to be happening with much more frequency than over the past year where it was occasional.
The weather is not hot and I also walk my other Sheltie, a year older, and he has no trouble walking for the 45 - 50 minutes or so. I offer her water but she doesn't want any and I wonder if I'm expecting her to walk too far as she seemingly gets so tired.
They both get regular heartworm treatment and she seems otherwise fine.
So I'm really keen to get some ideas from others.
Thanks in advance