Not sure what's going on.

I have had a painful throbbing in my left armpit and breast area for about 8 months.  It sometimes feels like a sharp or electric pain but I can feel it constantly.  It also almost feels like it makes my left arm week at times.  I don’t feel any lumps that I can pinpoint.  I saw my obgyn about 6 months ago and she couldn’t feel any lumps either.  she sent me for an ultrasound and nothing was found.  The pain continued and I went in for another exam and nothing was found.  I might add that I am nursing for going on two years.  Also that my mom was diognosed at age 38.  I am 32 years old.  Thank you for any feedback.

Nat, go and see your gp just to put your mind at rest. Worrying drives you crazy. Good luck.