Electric Shock Sensation in Left Hand: When to See a Neurologist? - Neurology

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The sensation of electric shock in your left hand, particularly around the area you described (the web space between the thumb and index finger), is concerning and warrants further evaluation by a neurologist. Based on your symptoms, it appears that you may be experiencing some form of nerve irritation or compression, which can lead to abnormal sensations such as tingling, pain, or electric shock-like feelings.

1. Timing of Symptoms: You mentioned that you pressed on the area multiple times around March 9th and only started feeling the electric shock sensation on March 20th. This delay could be due to a few factors. Nerve irritation or inflammation can develop gradually after repetitive stress or pressure. It’s possible that the initial pressure you applied caused some minor nerve irritation that only became symptomatic after a few days.
2. Water Sensitivity: The fact that water flowing over the area causes pain and a reflexive withdrawal response suggests that the nerve endings in that region are hypersensitive. This could be due to inflammation or irritation of the superficial nerves, which can occur from direct pressure or repetitive trauma. The sensation of pain when water touches the area may also indicate that the nerve is not functioning normally, leading to exaggerated responses to stimuli.

3. Rest and Activity: Regarding your question about resting the affected area, it is advisable to avoid any activities that may exacerbate the symptoms, particularly those that involve pressure on the area. While you can still move your fingers and hand, try to minimize any direct pressure on the web space between your thumb and index finger. If the symptoms persist or worsen, it would be prudent to limit the use of your left hand altogether until you can see a specialist.

4. Muscle Use and Sensation: If you are experiencing a "tingling" or "numb" sensation in your left hand and arm, it could be due to nerve compression or irritation. The feeling of numbness or tingling can sometimes be exacerbated by inactivity, as you mentioned. However, it’s also possible that the sensation is due to the underlying nerve issue rather than just a lack of movement. If the symptoms are persistent, it’s essential to seek medical advice.

5. Vitamin B Supplementation: You mentioned that you were prescribed B vitamins. These are often recommended for nerve health and can help with nerve regeneration and repair. If you find that your symptoms persist after finishing the prescribed course, it’s reasonable to consider discussing further supplementation with your healthcare provider. However, it’s essential to follow up with your neurologist if the symptoms do not improve.

6. Repeated Stimulation: If you continue to stimulate the area (for example, by washing your hands), it could potentially prolong the irritation of the nerve. While occasional exposure to water should not prevent the nerve from healing, if it causes pain or discomfort, it’s best to avoid it until the symptoms resolve.

7. Autonomic Nervous System: While your symptoms may not directly indicate autonomic nervous system dysfunction, stress and anxiety can exacerbate physical symptoms, including nerve pain. If you are experiencing significant stress, it may be beneficial to address this with relaxation techniques or counseling.

In conclusion, given the persistence of your symptoms and their impact on your daily activities, it is advisable to consult a neurologist. They may recommend diagnostic tests such as nerve conduction studies or imaging to assess for any underlying issues. Early intervention can often lead to better outcomes, so don’t hesitate to seek medical attention.