Conversation: The conversation between human and AI assistant.
[|Human|] When just falling off to sleep, my heart starts racing and pounding, spasm sensation to right of sternum.Arms, hands, legs and feet are hot, BP feels elevated. Left side of head, face feels numb and hot,Arms look redder. Just cant cross over to sleep without this happening.
[|AI|]  Hello. Thank you for your question and welcome to Chat Doctor. I understand your concern. Most of the people sense the heart beat as normal and understand this and accept it as a normal, physiological phenomenon. Some people, like yourself, sense this as a pathological phenomenon. I understand that. Every minimal change in perceived "physiological" or normal functioning, is interpreted like pathological things. This is a cause for anxiety or fear (situational anxiety) in these people and may or may not be followed with a panic attack due to one questioning him/herself "am I going to die?" "What is wrong with me?" etc. Every time we assume a lying down position, our heart, that beats by vibrating our chest wall, comes closer to a certain area of the rib cage. If lying on the left side it is so close to the chest wall that can even vibrate the bed you are lying on. All the other symptoms you mentioned are triggered by the anxiety attack you have, because all types of anxieties have one thing in common: flush of a Chat Doctor.