Hi, i am a female, 20 years old, and i have been experiencing sharp needle - like pain in my heart, or it feels like it is being squeezed, for the past year, however, recently i have been experiencing couple times a day every day. It lasts for about 5 - 15 seconds, but it hurts to the point that i instantly freeze and cant move or brethe. I am a smoker, and i do consume alcohol sometimes when going out. Should i be concerned? Thank you.