Whenever I get upset (angry or emotional) especially at someone else I get a tingling sensation down my left arm into my thumb, the muscle pad below it and the pointer finger. These last a very short amount of time but may have 3 in total for each occurrence and often happens when I think about the situation. It also feels as if my heart drops too in my chest.
The tingling may be a nerve compression(median nerve). Consult a neurologist. U may need an MRI of cervical spine to rule out any disc herniation at levels C5 to T1 which may impinge upon the exiting nerve roots on the left side thereby making you get the symptoms on your left thumb and index. U need to have a nerve conduction test done to check out any nerve affection. Check out if you have any difficulty lifting objects or so. Initially the doctor may recommend physiotherapy and a course of cryptomeria/Lyrics. Regarding your heart Chat Doctor. 