i didn't notice it this morning, but axle refuses to go outside or get up or anything. he got up to go potty at about 5am and was reluctant to do so. i thought it was just b/c the time (he's not a morning "person"). now it's 1pm and i had to make him get up to go outside, even though it's been 8 hours. when he went out, i watched him from the window and he is walking EXTREMELY stiff, and i can tell he's uncomfortable and feeling really bad. he went just far enough off the porch to do his business and is now laying back down. i expect him to be a little stiff in his hips b/c of his HD, but today it's also his shoulders. can dogs get something like HD in their shoulders? it's not his elbows, but higher up. he hasn't done anything excruciating the past few days, that would make him sore. also, any ideas on how to help him feel better would be great! our vet told us we don't need to have him on HD medicine for pain, but this is really hard for us lately, esp with the cold weather.