Horse Veterinary Questions? Ask an Equine Vet.
Hi, i`m Richard, a Veterinarian from the UK. Hopefully I can help today.
has she had any diarrhea? Has your vet done any blood work so far?
Ok, its good to have ruled out liver and kidney problems from the blood work. Are you up to date on your parasite control?
You mention she has difficulty urinating, has this been a problem for her in the past?
Has she had her urine tested for bladder stones?
If she has discomfort from a urinary tract infection or even bladder stones or crystals, that could certainly affect her appetite. If her blood work is all good and your vets exam is not turning up any other indicators, then investigating her struggling to urinate would be a good way forward.