The patient, a 42-year-old male, presented with a 17 pound weight gain over the past month, lethargy, and an enlarged liver. Laboratory results found excessive glycogen in the liver, abnormal fat metabolism, and low testosterone levels. The diagnosis determined the smooth endoplasmic reticulum was malfunctioning, impacting calcium balance and testosterone, glycogen, and fat levels. This caused multiple symptoms by disrupting the smooth ER's roles in lipid synthesis, detoxification, and calcium storage.