My American bulldog X Staffie is acting very oddly. He's been fine all day,hyper as always,until 40 minutes ago when he began licking at his mouth,then 10 minutes after that began to pant heavily,after that let out a single yelp and ran to the end of the garden and hid against the fence.
I was about to call the emergency vet but he's under the duvet now and seems to have settled,but I'm still worried.
What could be wrong?
TIA