Unexplained Nerve Sensations in the Armpit Area - Neurology

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The symptoms you are experiencing in your left armpit, described as a tingling or warm sensation, along with occasional sensitivity or itchiness around the nipple area, can indeed be related to nerve issues, especially considering your history of cervical disc herniation.
Nerve sensations like tingling, warmth, or sensitivity often indicate some form of nerve irritation or compression. The cervical spine houses nerves that innervate the upper extremities, including the arms and chest area. When there is a herniated disc in the cervical region, it can lead to nerve root compression, resulting in abnormal sensations in areas served by those nerves. This could explain the intermittent nature of your symptoms, as nerve irritation can fluctuate based on posture, activity, or even inflammation levels.

Your recent imaging studies, including X-rays and breast ultrasounds, which returned normal results, are reassuring. They suggest that there are no significant structural abnormalities in the breast or lymphatic system that could be contributing to your symptoms. However, normal imaging does not rule out nerve-related issues, particularly if the symptoms are consistent with a known history of cervical spine problems.

The fact that you have experienced similar symptoms in the past that resolved on their own is also noteworthy. This could indicate that your symptoms are likely related to transient nerve irritation rather than a permanent nerve injury. Nerve irritation can often improve with conservative management, which may include physical therapy, ergonomic adjustments, and possibly anti-inflammatory medications to reduce any swelling that may be contributing to nerve compression.

In addition, the sensitivity around the nipple area could be related to the intercostal nerves, which run along the ribs and can be affected by cervical spine issues. These nerves can sometimes become irritated due to postural changes or muscle tension in the neck and upper back, leading to referred sensations in the chest and armpit areas.

Given your symptoms and history, it would be advisable to consult with a neurologist or a specialist in physical medicine and rehabilitation. They may recommend further evaluation, such as nerve conduction studies or electromyography (EMG), to assess the function of the nerves and determine if there is any ongoing nerve damage or dysfunction.
In the meantime, consider practicing good posture, engaging in gentle neck and shoulder stretches, and avoiding activities that exacerbate your symptoms. If your symptoms worsen or if you develop new symptoms, such as weakness or significant pain, it would be prudent to seek medical attention promptly.

In summary, while your symptoms may be related to nerve irritation stemming from your cervical spine issues, they are likely not indicative of a serious underlying condition, especially given the normal imaging results. Monitoring your symptoms and seeking appropriate medical advice will help ensure that you manage this issue effectively.