I’m not a doctor I cannot diagnose or prescribe anything and without being able to see and touch the animal or run diagnostics, my advice will most likely be if you’re really worried, go to your vet/an emergency vet where they can run diagnostics
This leads to a whole myriad of misunderstandings about our identities, and I can't speak for all my ace siblings obviously, but I've had my sexuality randomly psychoanalyzed or explained away by dozens of people who just don't see my being ace as a good enough explanation.