Our 11.5yo Staffie seemed to suddenly go dizzy as she went outside last night. It was dark, the room was messier than usual (so she had no navigate her way past toys) but she listed left sideways into two dining chairs then left sideways again as she sent out of the door. This continued as she was outside.
When she came in though, she was fine and the listing stopped. DH did some 'tests' by throwing her ball to her on each side and she retrieved it, no problem. She seems fine now with no signs of listing. She's eating and drinking as usual.
What could this be - does anyone know? What do I need to look out for?