stabbing, intermittent pain in armpit region
(I posted this in the Men's Health Board, but since this problem does not involve my penis or any aspect of my sexuality (and since it has gotten no responses there), I thought this might be a better board for this question.)
For the last 15 years or so, I have been experiencing an intermittent, stabbing pain in the armpit region. Most recently it has been on the left side but, I think, it has also occured on the right side as well. When it happens, it feels like it is high up, on the inside of my arm, near the armpit. It occurs suddenly and is quite intense and then subsides.
This only happens occasionally. It may not happen for months and then there is a flurry.
I have not been able to coorelate this with any activity. Any suggestions of what this might be or where to look further for a cause?
Thanks in advance