I’ve just returned from holiday and got my 15 yr old Sparky back from my in laws. She’s acting very strangely. She’s staring into space in a stupor, laying with her head out from like she’s depressed but isn’t sleeping, her behaviour has changed (she’s biting and hissing which isn’t like her), she’s walking in circles, not sleeping, not wanting to go outside, hasn’t pooped since Thursday (she has chronic constipation but isn’t showing her normal symptoms of and episode), wants treats but reluctant to jump up onto the step to get one, reluctant to go up and down the stairs, and losing her balance on the window sill. She has hip dysplasia but was letting us move her back legs and touch her hips so I don’t think it’s that. I called the online vet who said to take her to the emergency vet. We’re sitting in the car park now and have been for an hour. The vet came out to get a history but was struggling to examine her as she is so angry. He said he thinks it’s her hips and the staring is dementia but I’m sure it wouldn’t come on suddenly and surely she would have complained about her hips being touched if that was the case. He’s just come back saying he’s managed to examine her a bit. She’s not walking quite right but not too bad. He said he thinks it’s her hips but I’m so worried about the stupor and just general listlessness. He can’t check her much more as she’s too agitated and angry. What are everyone’s thoughts?