 In Vietnam, when I got out of the bush with the Marines and back to the hospital in Da Nang, where I worked, the women who helped us clean the Quonset huts that we called operating rooms used to bring in nook mom. It was rice and raw fish, and I ate it. And Dr. Hughes said, your fear in going up an elevator, your heart palpitations, your hair loss, your tummy problems, your skin problems, those could all be related to a parasite.