Cold Sweats and Heart Palpitations: Symptoms Explained - Cardiology

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Chills and sensitivity to cold?


Hello, Doctor.
I apologize for bothering you again.
On March 3rd, after taking a shower and lying in bed playing on my phone, I suddenly started feeling chills and shaking all over.
I might have been too nervous, as my blood pressure was 180/80 and my heart rate was 120.
At that moment, I thought I was having a heart attack.
Could you please tell me what these symptoms might indicate? This morning, I still felt a bit chilly and anxious, and I noticed more skipped heartbeats.
Is it possible for blood pressure to spike suddenly like that, or could my heart have been affected by the scare? I've also been experiencing gastrointestinal discomfort and diarrhea for three days, which has been semi-solid and not watery.
Could this be related to the chills? If my blood pressure returns to normal today, does that mean it was a panic attack? Also, I sometimes feel my heart beating strongly while lying in bed, even when my heart rate is in the 70s.
Is that normal? Thank you for your help; I am feeling very anxious.

Xiao Yi, 20~29 year old female. Ask Date: 2023/03/04

Dr. He Dongjin reply Cardiology


Hello, not every discomfort is a myocardial infarction; you won't necessarily die from it.
It sounds like anxiety is causing autonomic nervous system dysregulation, leading to a strong heartbeat.
A strong heartbeat is not abnormal and won't harm your heart.
Symptoms like feeling cold, chills, and trembling are not related to the heart, so there's no need to worry.
Changhua Hospital cares about you.

Reply Date: 2023/03/04

More Info


Understanding cold sweats and heart palpitations can be quite complex, as these symptoms can arise from various underlying conditions. Based on your description, it seems that you experienced a sudden onset of chills, shaking, elevated blood pressure, and a rapid heart rate while feeling anxious. These symptoms can indeed be alarming, especially when one fears a serious condition like a heart attack.

Firstly, it's important to note that the symptoms you described—cold sweats, chills, and a racing heart—can often be associated with anxiety or panic attacks. When a person experiences anxiety, the body can enter a "fight or flight" response, leading to physiological changes such as increased heart rate, elevated blood pressure, and even sweating. This response is mediated by the autonomic nervous system, which can become dysregulated during periods of high stress or anxiety.
The elevated blood pressure you recorded (180/80) and the heart rate of 120 beats per minute are indicative of a stress response. While these numbers can be concerning, they do not automatically indicate a heart attack, especially if they return to normal levels after the episode. It’s also worth mentioning that feelings of palpitations or irregular heartbeats can occur during anxiety episodes, which can be distressing but are often benign in the absence of other concerning symptoms.

Regarding your gastrointestinal symptoms, such as diarrhea, these can also be linked to anxiety. Stress can affect the digestive system, leading to symptoms like diarrhea or abdominal discomfort. The fact that you experienced these symptoms alongside your anxiety suggests a possible connection, but it would be wise to consult a healthcare professional if these symptoms persist or worsen.

As for the sensation of your heart beating strongly while lying down, this can be a normal experience for many individuals, especially if they are feeling anxious or have recently engaged in physical activity. The perception of a strong heartbeat can be heightened by anxiety, and it does not necessarily indicate a problem with your heart.

In summary, while your symptoms can be concerning, they may be more related to anxiety rather than a direct heart issue. However, it is crucial to monitor your symptoms closely. If you experience recurrent episodes of high blood pressure, persistent palpitations, or any other alarming symptoms, it is advisable to seek medical attention. A healthcare provider can perform a thorough evaluation, including an electrocardiogram (ECG) or other tests, to rule out any underlying cardiac conditions.

In the meantime, consider employing relaxation techniques such as deep breathing exercises, mindfulness, or gentle physical activity to help manage anxiety. Staying hydrated and maintaining a balanced diet can also support your overall well-being. If your symptoms continue to cause you distress, do not hesitate to reach out to a healthcare professional for further guidance and support.

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