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What causes profuse perspiration, nausea, and tremors?

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

Patient's Query

Hello doctor,

I experienced an episode of profuse perspiration, accompanied by nausea and mild leg tremors, which occurred this morning. An ECG conducted within an hour was normal, and cholesterol levels were also within normal range. Please advise on the further course of action. Additional tests performed included a lipid profile, kidney function test (KFT), liver function test (LFT), and iron profile.

Please advise.

Answered by Dr. Vivek S Narayan Pillai

Education:

DM

Professional Bio:

Dr. Vivek S. Narayan Pillai is a skilled Cardiologist with expertise in diagnosing and treating heart conditions such as hypertension, coronary artery disease, arrhythmias, and heart failure. He is proficient in advanced cardiac diagnostics, including ECG, echocardiography, and stress testing. Known for his patient-centered approach, Dr. Pillai is dedicated to providing evidence-based cardiac care to improve heart health and overall well-being.

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

Hello,

Welcome to icliniq.com.

Are you diabetic? If yes, these symptoms could be explained by low blood sugar. Otherwise, they may resemble a panic attack or anxiety.

I hope this helps you.

Thank you.

Patient's Query

Hello doctor,

Thank you for the reply.

No, I am not diabetic. I have also attached the latest fasting blood sugar report.

Answered by Dr. Vivek S Narayan Pillai

Education:

DM

Professional Bio:

Dr. Vivek S. Narayan Pillai is a skilled Cardiologist with expertise in diagnosing and treating heart conditions such as hypertension, coronary artery disease, arrhythmias, and heart failure. He is proficient in advanced cardiac diagnostics, including ECG, echocardiography, and stress testing. Known for his patient-centered approach, Dr. Pillai is dedicated to providing evidence-based cardiac care to improve heart health and overall well-being.

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

Hello,

Welcome back to icliniq.com.

How are you feeling now? If these episodes are intermittent, they could be due to a vasovagal response or a panic attack. Additional tests that may be required include thyroid function tests and an echocardiogram to rule out any cardiac dysfunction.

I hope this helps you.

Thank you.

Patient's Query

Hello doctor,

Thank you for the reply.

I have felt weak since that day. The doctor prescribed Metoprolol succinate. My blood pressure at the time of the ECG (one hour after the episode) was 100/50 mmHg, though it usually stays normal or slightly below. I do not have a history of high blood pressure. Today, I experienced chest heaviness and a slow pulse. Should I continue taking the medication? My hemoglobin level is 9 g/dL. The doctor has recommended further blood tests, including PBF with reticulocyte count, calcium, LDH, iron profile, ferritin, and serum protein electrophoresis.

Answered by Dr. Vivek S Narayan Pillai

Education:

DM

Professional Bio:

Dr. Vivek S. Narayan Pillai is a skilled Cardiologist with expertise in diagnosing and treating heart conditions such as hypertension, coronary artery disease, arrhythmias, and heart failure. He is proficient in advanced cardiac diagnostics, including ECG, echocardiography, and stress testing. Known for his patient-centered approach, Dr. Pillai is dedicated to providing evidence-based cardiac care to improve heart health and overall well-being.

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

Hello,

Welcome back to icliniq.com.

If your pulse is slow, please avoid taking Metoprolol, especially if your pulse is below 60 beats per minute. Also, thank you for sharing your hemoglobin level; 9 g/dL is quite low. It seems that anemia may be the cause of your weakness. You can proceed with your doctor’s recommendations.

I hope this helps you.

Thank you.

Medically reviewed by Dr. K. Shobana
Published At April 25, 2018
Reviewed At June 11, 2026

Education:

DM

Professional Bio:

Dr. Vivek S. Narayan Pillai is a skilled Cardiologist with expertise in diagnosing and treating heart conditions such as hypertension, coronary artery disease, arrhythmias, and heart failure. He is proficient in advanced cardiac diagnostics, including ECG, echocardiography, and stress testing. Known for his patient-centered approach, Dr. Pillai is dedicated to providing evidence-based cardiac care to improve heart health and overall well-being.

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

Education:

BDS

Professional Bio:

Dr. K. Shobana is a Dental Surgeon specializing in oral health and dental care. She is skilled in preventive dentistry and provides oral hygiene education. She can do restorative treatments such as fillings and crowns. She can handle periodontal problems such as gum diseases and periodontitis. She can do root canal treatment.

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:

DM

Professional Bio:

Dr. Vivek S. Narayan Pillai is a skilled Cardiologist with expertise in diagnosing and treating heart conditions such as hypertension, coronary artery disease, arrhythmias, and heart failure. He is proficient in advanced cardiac diagnostics, including ECG, echocardiography, and stress testing. Known for his patient-centered approach, Dr. Pillai is dedicated to providing evidence-based cardiac care to improve heart health and overall well-being.

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

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