Melanie’s husband has reported problems he is observing in the home with his wife. The couple has three school-aged children. When the siblings get home from school, Melanie is usually sleeping on the couch. She fails to help with homework due to bad headaches and forgets important school events. Dinner is rarely cooked because Melanie reports feeling pain in her joints. She dozes off at odd times during the day and even during important events. What disorder might a therapist diagnose for Melanie?