Is the pain in my chest from my heart or my muscles?
I've been feeling a sharp pain intermittently in my left chest since yesterday. I got worried thinking it might be something related to my heart, but it seems to increase more when I move. So I wonder if it could be muscle pain. But when it comes to the chest, people tend to worry directly. Do you think it's an emergency? Should I monitor it for a while, or should I go to the doctor right away?






