Diana was the first one to respond to my last post. She suggested checking Oreo's feet and toes. Of course, I did so right away! Diana has had her own problems with the A-Frame, so I consider her an expert.
Immediately, I thought about the day of our class. About 2 hours before our class, I had taken Oreo & Misty for a walk. One street still had a heavy covering of salt. My street didn't, otherwise I wouldn't have left the house without putting their boots on. At one point in our walk, Oreo stopped walking, and just held his back right foot up in the air. I stopped and rubbed the pads, trying to get any grime out. Then, I had them walk on clean snow the rest of the way. I didn't think much off it, as he seemed to be fine after I cleaned off his foot.
Yesterday, when I checked Oreo's feet, I found three small, white wart/pimple like things on the edge of one of his back right paw pads. Not sure if they had been there before our walk, and got irritated by the salt, or if they were caused by the salt.
He does seem to be holding his weight slightly differently at times.
Since last night, I have been putting Vitamin E on the bumps, then putting his boot on so he doesn't lick it all off. I'll watch the bumps over the weekend, and bring him to the vet if they don't go away.
Guess this could explain the A-Frame avoidance!
Although he can't be in too much discomfort! He's been running around like this!
Thanks to everyone for all your helpful advice! Oreo is a wacko! Who knows what his problem is! I can use all the advice I can get!