hi there. my male cat, jimi, is 15. since the beginning of the year he has been to the vet four times for vomiting and weight loss. he has a history of C. Diff, but this year each time blood has been drawn, all the chemistry is normal and so are his stool samples. the only evidence that anything is wrong is some colitis that showed on his x-ray. he was put on prednisone for that. he is still having spells of vomiting. lately, he wants to eat, but hardly eats when i put food down. i've tried all kinds of foods. he gets nutrimalt everyday to help with hairballs. his litterbox, drinking and play habits are normal. he is not withdrawn. am i being paranoid? could it be he is just old and finicky? i'm just so worried about him. he's going back to the vet this week. any thoughts will be much appreciated. sorry this post is so long. ---rebecca