I think it could be normal
Bobs takes an age hunched up, walking round in circles trying to find just the right spot to do what he needs to do.
If he is eating, drinking, playing and pooing ok, then I don't think you have too much to worry about but if you are still concerned by all means talk to your vet for reassurance
If he is eating, drinking, playing and pooing ok, then I don't think you have too much to worry about but if you are still concerned by all means talk to your vet for reassurance