10. Mrs. Borhoquez, complaining aches and pains, is terrified that she has contracted a viral infection that is invading her body and weakening her immune system. In spite of medical tests that show no illness, she continues to surf the Internet looking for a diagnostic match to her symptoms. Family members were sympathetic at first but now are tired of hearing the same old complaints. Mrs. Borhoquez presents a classic case of__________ in DSM-V.