My roomate was given a kitten from a friend of his who couldn't take care of it and brought it home about 3 weeks ago. Last week i thought i noticed something white around his bum, but i didn't pay any attention to it. He took very sick this weekend with diahrea and a swollen abdominal. I was just playing with him and noticed worms crawling in and out of his bum! (sorry for being gross) I am totally grossed out.. i've raised two cats and i've never ran into this before. What is it?! What causes it, how will it go away, and most of all.. can i get it?! I play with him every day, all day.. he sleeps on my bed at night and I'm so worried that i have contracted it from him! Please help!