chest pain maybe muscle?

I have been having this dull pain on the left side only of my chest that sometimes goes into the upper arm and lower left arm.  It comes and goes although it does not seem to matter if I am moving either through exercise or not.  It has appeared even through typing. Sometimes I can bring it on by a deep breath. I do stretches before exercising and I was wondering if I could have pulled a chest muscle that would effect this area?  If so, how long would a muscle normally take to heal?  This has been apparent for one week.  Does it sounds like a heart problem?  It has not spread to the other side of the chest at all.  I am  a 28 year old female.

[CCF CARDIO MD JMF]

Dear Andrea,

sounds like you did indeed pull a muslcle.  if this persists, you may want to have this evaluated by an internist.

[Stephen1126]

A related discussion, chest pain was started.