Conversation: The conversation between human and AI assistant.
[|Human|] Hello -  I have been waking up with and have also felt late at night - with a stitch like feeling (like a twisted muscle) at the top left had side of chest and it does not go away deep inside top left chest area (not heart I believe, no shooting arm pain or breathlessness) I just wanted to check if it is a pulled muscle or what it may be as it is at the top/middle side of left chest - seems muscular not in the bone (ie: Arthritis) I do not have any other symptoms when it occurs?  It seems to go away if I take pain relievers or high dose magnesium supplement. Hope you can assist. Thank you.
[|AI|]  Thanks for your question on Chat Doctor. I can understand your concern. Since you are having left sided chest discomfort, better to rule out cardiac cause first. So get done ECG and 2d echo. If both are normal then no need to worry about cardiac cause. Possibility of muscular twitching due to bad posture in sleep is more. And you are also improved with muscle relaxant, this also favors muscular cause. Another possibility is calcium deficiency, as you are improved with magnesium supplement. So get done serum calcium level to rule out deficiency. Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.