I do not believe it is cancer but you should go and see a doctor to check it out and have a Mammogram to prevent it before it happens to you. Get some skin cream, add some saseame seed oil in it, mix it and massage your breasts twice daily. Tell me if you wear underwire and / or push-up bras as they are well known to cause breast pain and cancer. Use a full type cup bra without the underwire and you will have healthy breasts.
As for the pain in your breast, you most likely have some pinched and dislocated nerves in your mid-back area and those nerves need to be reset soonest. I know as I have been a Healer for 14+ years.
The second thing I must know bhugz, is to know what part of your friend's body did she had the tumors? She probably wear underwire and push-up bras too. Tell her to use a full type cup bra without the underwire and her too will have healthy breasts. Tell her also to get some skin cream, add some saseame seed oil in it, mix it and massage your breasts twice daily.
I sure hope I have helped both of you.