Chronic abdominal pain, constipation and nonspecific neurological symptoms commonly present in primary care and are often attributed to functional disorders or stress. However toxic exposures such as lead poisoning may manifest with similar features and remain unrecognized. This case describes a 35-year-old man whose persistent symptoms were repeatedly considered nonspecific until a detailed occupational and hobby-related history revealed chronic lead exposure, highlighting the importance of broad differential diagnosis in primary care.A 35-year-old man presented with three months of abdominal pain, constipation, fatigue and distal paresthesia. Earlier assessments had suggested functional gastrointestinal or stress-related conditions. During comprehensive history-taking, he reported a six-month hobby of melting and casting lead fishing weights at home in a poorly ventilated space without protective equipment. Symptoms began shortly after starting this activity. Physical examination showed pallor, abdominal tenderness, subtle wrist extensor weakness, and a faint Burton line. Laboratory tests revealed normocytic anemia, basophilic stippling, elevated zinc protoporphyrin and a blood lead level of 68 µg/dL, confirming chronic lead poisoning. He was referred for chelation therapy, stopped the exposure and received environmental safety counseling. Recognition occurred promptly once the exposure history was identified and his gastrointestinal and neurological symptoms improved within weeks.Adult lead poisoning from home-based metal casting is rare and seldom reported in primary care. Most cases stem from occupational exposure or contaminated products. This case is distinct because the source was a personal hobby that initially mimicked benign conditions. Diagnosis in a Family Health Center underscores the critical role of primary care clinicians in detecting unusual environmental hazards.Clinicians should routinely inquire about environmental, occupational and hobby-related exposures when symptoms are chronic and multisystemic. Nonspecific complaints should prompt consideration of toxicologic causes. This case highlights the importance of early recognition, structured exposure screening and community education regarding safe metal handling.Lead poisoning is difficult to diagnose due to its nonspecific, multisystem nature. Delayed recognition reflects common patterns in environmental toxicities.This case demonstrates how a seemingly harmless hobby can result in significant lead toxicity and reinforces the need for thorough exposure histories in primary care.