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I have a headache and fatigue. Is it a side effect of smoking?

This Premium Q&A, reviewed and published, features a real conversation between an iCliniq user and a physician.

Patient's Query

Hi doctor,

I started smoking four years ago, and now my smoking habit is continuous. Sometimes I feel very nervous and tired. I also have a headache. Is my symptom because of smoking?

Please suggest.

Answered by Dr. Geethu Thomas

Education:

MBBS

Professional Bio:

Dr. Geethu Thomas is a General Practitioner and Family Physician specializing in Internal Medicine. She manages acute and chronic conditions, offers preventive care, and provides health education for patients across all age groups. She is also dedicated to promoting overall wellness and early disease detection.

This doctor is not available for online consultations on the platform anymore.

Hi,

Welcome to icliniq.com.

The nicotine present in cigarettes causes blood vessels to narrow, which will reduce the blood flow to the brain, triggering a headache. So, yes, in a way, we can say that smoking is causing these side effects.

Now, coming to the nervousness and tiredness, recent studies say that though nicotine produces temporary calming down, in the long run, it causes anxiety and other side effects.

I hope this helps.

Thank you.

Medically reviewed by iCliniq medical review team
Published At October 8, 2017
Reviewed At February 17, 2026

Education:

MBBS

Professional Bio:

Dr. Geethu Thomas is a General Practitioner and Family Physician specializing in Internal Medicine. She manages acute and chronic conditions, offers preventive care, and provides health education for patients across all age groups. She is also dedicated to promoting overall wellness and early disease detection.

This doctor is not available for online consultations on the platform anymore.

Same symptoms don't mean you have the same problem. Consult a doctor now!

Education:

MBBS

Professional Bio:

Dr. Geethu Thomas is a General Practitioner and Family Physician specializing in Internal Medicine. She manages acute and chronic conditions, offers preventive care, and provides health education for patients across all age groups. She is also dedicated to promoting overall wellness and early disease detection.

This doctor is not available for online consultations on the platform anymore.

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