Hello doctor. I wanted to inform u that i have been facing this symptom since a year. My vein triggers and shivers on the neck area on LHS whenever i do a hard n tuff swallow for taking the coming mucus inside. I have consulted a child specialist. Done all the heart tests. Every report was fine Touchwood. But one symptom is this. Another symptom is that whenever i drink something excessively like fresh lime soda, etc so i feel pain at the neck and shoulder area. Btw this is happening from my childhood but still it is happening. Why is it so?? Like the reports were fine. Also i do singing but the pain which has occured is from my childhood. Why is it so???