hello im new here and hope someone may be able to shed light on my dogs problem. I have an 11 year old border collie bitch called lillie. She is in good shape and has always been healthy apart from having fho surgery on her hips 2 years ago. Today she went for her walk around the woods as usual, about 30 minutes after we got home her eyes went wierd. for about 3 minutes her eyes were almost bulging with the whites showing. i thought she was going to have a fit or a stroke but the eyes then just went back to normal, her behaviour was fine while it happened no different. What could of caused her eyes to do this, its never happened before, im so worried.Any advice would be appreciated, many thanks.