I have a 5-6 year old female cat, who has suddenly started over-eating and begging for food constantly. She is gaining weight rapidly. I hesitate to bring her into the vet again as it is so stressful for her. Originally a feral, I took her in some years ago when she was pregnant. It took years to gain her trust but she settled in. A few weeks ago I took her for an emergency visit as she had a bird quill stuck in her mouth, and wounldn't eat and she was given a shot of antibiotics. She seemed to recover but a week later she developed a UTI, and another vet gave a different type of antibiotic (pills). She recovered completly from the UtI, but something went haywire and she won't stop eating ---I have 4 cats and she tries to eat everyone else's food and keeps begging and scrounging for more. I thought perhaps it might be worms but she is getting really fat and worms usually present with weight loss. Any advice or suggestions would be much appreciated. Thanks in advance