[anonymous]

I would call the vet and tell him you would like a quick follow-up visit (some clinics don’t charge)
The dog is status post surgery times 2 weeks and the dog is still not back to normal despite dietary changes.

PS: Call the vet that did the surgery, and leave a message for him to call you back when he has a minute. Just talking to the receptionist or vet tech is not sufficient (imo)
I had one dog years ago, and status post spay surgery she developed a hernia at the incision, they didn’t pick up on it till weeks later when they gave her a thorough exam.
They said it can happen; it’s in the fine print :-/

Of course that may not be what’s wrong with your dog but something is off. I’d be inclined to ask for a follow up visit, asap