The medical term for fainting or passing out is syncope. Syncope is caused by a temporary shortage of blood that reaches the brain. The symptoms include dizziness, cold and clammy skin, nausea, headache, blurry vision, and blacking out. The types of syncope are reflex syncope, cardiac syncope, orthostatic syncope, and cerebrovascular syncope.

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Suddenly, I got fainted and waked up with eye bruising. Can I have syncope at 28 years of age?

Query: Hi doctor,I am 28 years old with normal weight and following a vegetarian diet. Last month, I fainted at home and my friends told me that I was not able to breathe. Once I woke up, I saw the area around my eye is bruised. It happened again last night and I was able to inhale and not able to exhale.   Read Full »

Dr. Muhammad Zohaib Siddiq

Cardiologist, General Practitioner

Answer: Hi, Welcome to Please mention the position while fainting whether you were standing or sitting or doing exertion, any other symptoms such as dizziness, sweating, duration of fainting, any urinary incontinence, or tongue bite. Please mention about the health condition present after get...  Read Full »

Can neurological disorders cause episodes of presyncope?

Query: Hello doctor, I keep having episodes of presyncope. I have been to the local ER four times and was admitted on the last time. During the course of those four visits, I had all my basic blood work done which came out normal. I had a CT scan without contrast that was normal. An ultrasound of my carot...  Read Full »

Dr. Aida Quka


Answer: Hello, Welcome to I read carefully your question and would explain that your symptoms could be related to different possible causes: A metabolic disorder. Vasovagal syncope. Cardiac arrhythmia. Seizures may mimic this symptomatology too. Coming to this point, I would recomme...  Read Full »

When should I seek medical advice for SVT?

Query: Hi doctor, When I was 13 or 14 years old, I was diagnosed with SVT (supraventricular tachycardia). During initial days, it would last several minutes, and by the age 15, it was down to a few seconds (10-15). I saw a cardiologist, and he said that for the age 15 the SVT was so irregular. Also, he sta...  Read Full »

Dr. Sagar Ramesh Makode

Cardiologist, General Medicine Physician, Internal Medicine Physician, Family Physician, General Practitioner

Answer: Hello, Welcome to The episode that you described is probably an SVT episode. The warning signs are the same which you had such as sudden palpitations, dizziness, shortness of breath and chest pain, and lastly, it can lead to syncope. However, these are not directly life-threatening. ...  Read Full »

Why did my heart rate drop to 32 after a knee replacement surgery?

Query: Hi doctor, I was in the recovery room after undergoing total knee replacement (TKR), and my heart rate dropped to 38. I felt weak and tired, so the nurse added something to my IV, and I felt fine, and all vitals returned to normal. They took me to my room, and I ate and was resting. My heart rate d...  Read Full »

Dr. Isaac Gana


Answer: Hi, Welcome to I have gone through all your explanations in detail. The closest possibility to the cause of your problem is most likely due to the effect of anesthesia. I have seen a few cases similar to this where post-operation there is a severe case of bradycardia without any evidenc...  Read Full »

I have rapid heart rate and dizziness after doing strenuous activity. Please help.

Query: Hello doctor, About a year ago, I had a long break from doing any type of fitness. About five months ago, I started doing more things again, mainly little things like going out to hang out with my horses, and going to a therapist for a bit. Then around two or three months ago, I decided to go to a ...  Read Full »

Dr. Nishant Kumar

Family Physician, General Practitioner

Answer: Hi, Welcome to As per your symptoms, you feel dizzy when you do strenuous work or when the temperature changes (I guess when it becomes hotter) and when it is humid. As you feel nauseated. And you said that all blood reports with thyroid reports are also normal. The chances are this i...  Read Full »

Is Electrophysiological study necessary for heartbeat irregularities?

Query: Hello doctor, I am a 30 year old male, and I have a heart condition from when I was three years old. My heartbeats get very fast all of a sudden. What is the name of my heart problem? The ECG report was not normal. I am taking ayurvedic medicines for this problem. A doctor told me to get a surgery ...  Read Full »

Dr. Sagar Ramesh Makode

Cardiologist, General Medicine Physician, Internal Medicine Physician, Family Physician, General Practitioner

Answer: Hello, Welcome to Your heart condition is a cardiac arrhythmia, which is called PSVT (paroxysmal supraventricular tachycardia), in which heart rate suddenly goes up and also suddenly decreases. The blood pressure falls during these episodes, and one has dizziness, fainting, bla...  Read Full »

Are these head-reeling episodes sue to stroke, seizure or syncope?

Query: Hello doctor, I have consulted you over this forum regarding the health of my mother (59 years), who is under treatment for hypothyroidism (Eltroxin 50 mcg), hypertension (Olmezest 20 mg), osteoarthritis (Gemcal D3, Kondro OD) and mild anemia Hb 10.6 [11.5 - 15] (Folvite). I would like to request y...  Read Full »

Dr. Shivam Om Mittal


Answer: Hello, Welcome to It is difficult to comment if the episodes are solely syncope/ fainting spell due to orthostatic hypotension or abnormal heart rhythm. I agree with Holter monitoring. I would also, recommend EEG study for one hour to make sure we are not dealing with seizures. Her ...  Read Full »

What is the cause of blacking out and feeling light-headed?

Query: Hi doctor,I am an 18 year old girl and recently I have had trouble with conscious blacking out. The first time it happened was this month and I have not had any trouble until a few days ago where it happened three to four times in one day. I will be standing or just walking around and start to ...  Read Full »

Dr. Sagar Ramesh Makode

Cardiologist, General Medicine Physician, Internal Medicine Physician, Family Physician, General Practitioner

Answer: Hello, Welcome to This is fainting. I need to know some more information regarding the symptom like: has it followed some kind of stress, dehydration, prolonged standing especially in hot weather, panic, fear or pain? Because it is common for fainting to follow all these events, and ...  Read Full »

I feel weak, numb, and almost pass out. Do my CTA reports show the cause?

Query: Hello doctor, I have been feeling weak, numb, and almost passing out throughout the day randomly for a month. I had a CTA in the ER, and they sent me home with this report. And they said to check with neurology, but not to worry. I have read and it says not to worry unless you are symptomatic, which...  Read Full »

Dr. Sadaf Mustafa

General Medicine Physician, Internal Medicine Physician

Answer: Hi, Welcome to You have hypoplastic right intracranial vertebral and basilar arteries and severe hypoplasia of the right posterior cerebral artery (the P1 segment). But with a patent right posterior communicating artery, which is supplying blood to the right posterior circulation. In my...  Read Full »

Kindly check my cousin's reports and advise if there is any abnormality.

Query: Hi doctor,I am asking query for my cousin. He met with an episode of syncope and head injury a month ago. He was in ICU for a week. He had this in the early morning while he was in the bathroom. Also, he had a high fever at that time. There is no previous history as such. Only he used to take medic...  Read Full »

Dr. Hitesh Kumar


Answer: Hello, Welcome to Kindly answer my questions as I would like to know some details of the problem. What was the patient doing while he had syncope? Was he simply standing or sitting on the commode or passing urine in the standing position? Did he felt anything wrong in his body before ...  Read Full »

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