Lynn, Milo has lost quite a bit of weight lately. It maybe because he caught that bug last week. Or it maybe other problems like worms (didn't see any), kidney problems, or cancer etc. I'm just second guessing myself. Hubby thinks it may just be that he excercises a lot and has switched from eating crappy to high quality foods. Hubby doesn't want him to see the vet yet unless it's something more prominent. It's not a money issue. He doensn't want to stress Milo out unneccessarily with a vet visit. I'm really worried. What should I do? Milo is 4 yrs old and seems to be healthy otherwise.