Last week I had a strong electrical tingling sensation in my mid chest. Lasted only a few seconds, but was sharp. Later that evening I had several small, similar sensations also in mid chest, above sternum. Today, about a week later, I had similar electrical tingling in my left arm. It has continued for a couple of hours, but mild so far. Not as intense as the initial chest sensation.
Hi, Thanks for writing in. The nerves to the arms and chest originate from the spinal cord in the cervical and thoracic spine. The cervical spine is made up of 7 small bones aligned on top of each other and the thoracic spine has 12 bones lined up together. There are spongy discs between these small bones which give it a cushioning effect and help in forward backward and turning movements. There is a possibility that your discs at particular levels have been degenerating for some time. Since it has happened over the past week, it is important to rule out any nerve irritation or a condition that has developed recently. The tingling sensation is more frequent when there is pinching of the nerves in the region. Doing an MRI scan of the cervical and thoracic spine might be required. This will be decided after once a neurological clinical examination is complete. Treatment depends on clinical and imaging findings.