Thank you so much for your quick response. I appreciate it. I did call my doctors last night. They told me to mark the area (which is pretty much the whole breast) with a marker to see if it spreads. If yes, go to an ER and if not just make an appointment with them. So this morning it thank G-d does not look worse (not much better either), but I will surely see my doctors this week. One doctor said that sometimes tamoxifen can have strange side effects - even though I've been on it for almost 2 years already, a new side effect can show up. So I just hope this is nothing serious, cuz when u look things up on the computer, you end up diagnosing urself with the worst things! Better to see a doctor. Again - thank you so much for answering.
A bruise usually indicates that small blood vessels below the skin have burst for some reason which of course is usually some type of injury. I would get in touch with your Dr. first thing Monday morning for his/her opinion as to the cause if you're sure that you didn't bump that area. Sometimes those vessels can be rather fragile and it might not take much to cause a bruise but if it involves the entire breast I would certainly get some medical help sooner rather than later. Regards ....