For the past two months I have been having a dull ache in my left arm that comes and goes, sometimes it's just in the forearm, sometimes it's in the left side of the neck, once in a while i have a dull ache in the sterum area. I run three miles three times a week with no arm pain, just a dull ache in the sterum once in a while. I had a stress (thalium) test done last July which was normal. The arm ache and tingling seem to get worse when under a lot of mental stress and not physical stress. Sometimes it's even in my right arm.
Could stress cuase this?