I have within the past month started to have an intense tingling sensation occur daily (once or multiple times) which radiates down my left arm into my left hand focusing on my left thumb. Only during the episode of tingling is there also numbness in the thumb.
Help with what may have caused this, what my first steps in diagnosing the situation, type of physician or specialist to request seeing, other issues which could help me pinpoint this matter, etc.
This symptom can be due nerve problems, specifically with the median nerve which supplies those areas you mentioned. There can be compression of this nerve in its origins from the cervical spine, or a primary nerve problem such as a demyelinating condition. Most commonly, these sensations can be due to stress or fatigue, or result from incorrect position during sleep. Deficiencies in certain vitamins such as the B vitamins can also be the culprit. A consult with a neurologist is warranted to further and thoroughly assess your symptoms. For now, avoid stress as much as possible and a balanced diet with supplementation is also recommended.
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