I m a 39 year old female in good health (I am 5 4.5 and 105 lbs - slight anemic) One day about 3 months ago I had a severe side stitch pain up near my heart while walking. I had to stop walking it hurt so bad. Now it is not that bad but I feel this pain near my heart every day. It is annoying. Should I have this checked?
Yes many times I have seen patient who are completely healthy and have experience pain sometimes near the heart which gets aggravated with walking and running. This is called as angina.  For this kind of condition I suggest getting the electrocardiogram and treadmill test. Based on this report you can check for treatment what has to be done.  It may be needed to do Coronary angiogram. I must advise here not to get panic but do get your problem evaluated properly. Take care