My kitten has white worms and is tired. Should I take him to the vet?

It sounds like Boots may have intestinal parasites. There are many different kinds, but we usually lump them into 3 groups: round/hook/whip worms look like spaghetti, tapeworms look like flat noodles or small grains of rice, and coccidia or giardia are other types that are not visibly seen. You can try an OTC dewormer that treats the specific type of worm you are seeing and make sure it is repeated in a few weeks as directed on the label, but I recommend that Boots go to a vet. She is way overdue for kitten vaccines and a rabies shot (which is required in all cats and dogs by law - even if they will never ever step foot outside). There are many nasty cat viruses that can cause illness and even death. Your vet can also test a fecal sample to determine the most appropriate treatment timeline for her individual parasite(s).