The vet saw her Sunday and said her bladder was inflamed. She's on 0.4ml of metacam once a day, 0.6ml of emeprid 3 times a day and 0.45ml of baytril twice a day. I've been syringe feeding her since Sunday. She's had a tiny bit of food just lettuce or mouthful of grass.
Thanks! Did the vet do an x-ray to check for a bladder or urethral stone? And did the loss of appetite happen before or after you started the baytril. Baytril has an appetite dampening effect. I would strongly recommend to split the metacam dose and give it twice daily, as piggies have a very fast metabolism; is it cat or dog metacam? It is good that your vet has already included a gut stimulant (emeprid).
There are several issues with similar issues lumped under bladder issues. If you are dealing with cystitis, an inflammation of the bladder walls (as opposed to a bacterial urine infection), this is often caused by a build-up of sludge in the bladder or by stones, and it often doesn't react much to antibiotics. If you are dealing with a chronic bladder wall inflammation that flares up from time to time, you are speaking of an interstitial cystitis; this is something that often can only be managed, but not healed until it disappears on its own after a few years. I would also recommend to have the womb checked; it can also present with similar symptoms.
How much do you syringe feed? A healthy piggies needs about 120 ml in liquid or solid food per day to keep the weight up; during an acute crisis when a piggy is not eating at all, you should try for at least 40-60ml food intake in a day. Just a mouthful of grass is not enough, as up to 80% of the food intake is actually unlimited hay.
Please see a vet again, if the appetite is still off and there are no poos even with increased syringe feeding and syringing extra water (important especially with a bladder problem, as you want to keep the bladder flushed). Some people say that fresh grass can make a cystitis worse; I cannot yet comment on this. Please carefully read our syringe feeding guide, so you can judge whether you are feeding enough food - in which case not getting any poos is rather alarming!