An emergency or not?

[TOWGA]

Our vets have no appointments till Monday, I have spoken to them they just offered me an appointment for Monday morning.
we have a 10.5 year old Labrador, he was in the vets on Wednesday as he kept groaning but couldn’t quite work out what was wrong. The vet thought it might just be arthritis in his back legs so gave us some pain killers.
Today he has more pronounced limp on his front right leg and doesn’t want to walk on it very much or put it down. Would you phone out of hours when they kick in at 12, to get him seen?

Can you check his paws properly to make sure there's nothing stuck?

Might be his back if the limp is on different legs. He might be trying to get in a comfortable position. I think I would phone for advice.

When is his next painkiller doses due?

Also have you done a check by running your hands down his back and legs. Try and move his joints. See if you can find the area/ spot. If he yelps, try or nip your hands = vets, if uncomfortable give some painkiller and see if it improves within an hour If not, emergency vets.

You know your dog best so you should be able to gauge his reaction to acute pain.