Hey everyone. Starting yesterday my cheagle (chihuahua beagle mix) no longer wanted to jump onto the couch. It happened out of no where. The day before he was having no issues. He is 12 years old. So he's no young pup. Has anyone else had this happen? Other than that he sees normal. Drinking, eating and "playing". He's never been into playing much even as a younger dog. So it makes it hard to tell sometimes. Also still greets me at the door, goes crazy when seeing the mail man, and wants to go on walks. So I'm alittle puzzled as to what happened. Thanks for the input.