Because her problem continued this morning, our local veterinary office is keeping Tasha for the afternoon for continued injected medication, hydration, and further examination. Even the vet, Dr. M., remarked that Tash looked like a fine healthy cat. The fact that she vomits about once an hour hasn't –so far– changed her appearance. This vet wasn't sure she agreed with the emergency practitioner … the problem may not be an inflamed bowel. She and I agree that the esophagus is worth a look for the trigger of all this trouble. So we'll see what they find. The office is supposed to call at 5:00 to discuss findings and where our poor cat will spend the night.
Update: The vet called at 4:30 reporting that, as before, nothing could be found that certainly is causing Tasha's difficulties. A new x-ray indicated a possibly enlarged spleen and thickened intestine but the film was sent out for reading by a radiologist. No indication of blockage in the esophagus, stomach, or intestines. Tasha will spend the night at the local vet's for continued medication and observation to be reevaluated in the morning.