Intermittent Chills Without Fever: Causes and Considerations

Feeling chills without having a fever can be a concerning symptom, and there are several potential reasons for this condition. One possible cause is the intake of certain medications, such as SSRIs, SNRIs, and herbal supplements, which can result in chills as a side effect. Additionally, several medical conditions and external factors can also lead to the occurrence of intermittent chills.

Conditions Causing Intermittent Chills without Fever

Exposure to cold is a common cause of chills without a fever. Cold temperatures can trigger this symptom, making it an important factor to consider, especially if you are in a chilly environment. Medications, particularly certain antidepressants and herbal supplements, can also cause chills as a side effect. Another possible reason is the body's reaction to extreme physical activity, which can result in sudden changes in body temperature. Hormonal imbalances, such as hypothyroidism, can cause chills, while low blood sugar (hypoglycemia) and malnutrition can also contribute to this condition.

Furthermore, emotional distress and stress can sometimes lead to symptoms of chills without fever. In the context of a recent illness, these symptoms can sometimes persist as the body continues to fight off the infection or virus.

Personal Experience and Speculations

Several months ago, I became sick and experienced a low-grade fever ranging from 99 to just under 102, along with severe chills. After recovering, I noticed unpredictable periods of feeling suddenly hot, followed by shivering chills. The intermittent temperature changes were noticeable, but this did not feel like the usual sick and awful feeling associated with a fever and chills. These chills, however, were not accompanied by a fever, which is a distinguishing factor.

While I initially assumed that my body was still fighting the virus, several months have passed, and no lingering symptoms are present except for occasional breathing difficulties related to my asthma, which is more pronounced than usual. Heart palpitations are another new symptom, but they do not always coincide with the intermittent chills. I suspect that the heart issues may be related to the asthma medications I used while being sick, as I resorted to using my inhaled steroids more frequently than usual.

Given my age (64) and past experiences with hormonal changes (hot flashes during perimenopause and menopause), I wonder if these intermittent chills could be a return of hot flashes. However, my recent episodes do not feel as intense as those from my menopausal years. I also consider the possibility that my body is still dealing with the effects of a viral infection, even though I did not require antibiotics to recover.

To shed more light on the situation, I have decided to monitor my body temperature when experiencing these sensations. Recording my temperature the next time I feel hot followed by chills will help determine if there is a pattern or if these symptoms are unrelated.

Lastly, I plan to get a coronavirus antibody test when it becomes available, given the recent concerns about the spread of this virus and the possibility of lingering symptoms.

Conclusion

While the exact cause of intermittent chills without a fever can be complex, several factors such as medication side effects, hormonal imbalances, and recent illnesses can contribute to this condition. Monitoring your symptoms and consulting a healthcare provider if they persist or worsen can help determine the underlying cause and appropriate treatment.

If you are experiencing similar symptoms, it is important to consult a medical professional who can provide a proper diagnosis and recommend the best course of action. Remember to discuss any recent illnesses, medications, or lifestyle changes that might be contributing to your symptoms.