Re: Arm pit pain
Sounds like you've been through alot. It is most likely something unrelated to cancer, but to be sure, you could schedule an appointment with the gyn. Sometimes these things can just be a matter of fluctuating hormones when you have pain, tenderness under the arm etc.
I did have a lump under my arm many yrs ago. Went to my internist and he said wait 3 mths to see if hormonal. - Sure enough, it went away after a couple of mths.
Hope this helps.