Carolyn, it's true that sometimes breast cancer lumps can be painful. And inflammatory breast cancer is more often painful than not. But IN GENERAL, when women experience a pain in their breast, it's almost always due to some other cause - not breast cancer.
The rule of thumb always applies: any breast change that lasts longer than one menstrual cycle should be checked by a doctor. But if you have a pain in your breast, you shouldn't automatically stress over it and assume it's cancer; because, though the possibility exists - as you discovered, unfortunately - statistically speaking, a pain in your breast probably stems from some cause other than cancer. - PJH