Hello,
I understand your concern. Persistent dry cough and breathing difficulty for 8â10 years, along with fever, headaches, and body pain, require further evaluation.
Normal chest X-ray and HRCT findings are reassuring but do not exclude conditions such as asthma, cough-variant asthma, upper airway cough syndrome, or gastroesophageal reflux (GERD).
An ESR of 40 and positive
CRP suggest inflammation but are nonspecific and cannot independently confirm infection or autoimmune disease.
A whole-body FDG PET-CT is not recommended as a routine first-line investigation in this situation. It may be considered only if further clinical assessment raises suspicion of a specific condition requiring advanced imaging.
Next Steps
Consult a pulmonologist and internal medicine specialist for a detailed clinical assessment. Review your pulmonary function test results, including bronchodilator reversibility. FeNO testing or bronchial challenge testing may help evaluate asthma. Consider repeat CBC, quantitative
CRP, ESR, and targeted infection screening, including tuberculosis testing if clinically indicated. Evaluate other possible causes, including allergies, GERD, environmental exposures, and sleep-related breathing disorders. If fever remains unexplained, further investigations should be guided by examination findings rather than proceeding directly to PET-CT.
Health Tips
Avoid smoking, dust, pollution, and other respiratory irritants. Maintain adequate hydration and keep a record of fever episodes and associated symptoms. Seek medical attention if you develop worsening breathlessness, chest pain, coughing up blood, low oxygen levels, or persistent high fever. A systematic investigation is more likely to identify the underlying cause than an immediate whole-body scan. Wishing you good health and a speedy recovery.