Advice for unexplainable breast bruise and lump

I am a 30 year old female and yesterday evening I found a bruising on my right breast above my nipple, it is longer than wide and tender.  Upon inspection I found a lump below the bruise and above the nipple, and now I am freaked out.  There is no cancer in my family and I don't know anyone to ask. The bruise is slightly tender and the lump very noticeable like it came from nowhere.  
Any advice?

[japdip]

If you have had some injury to the breast, and this could be a bump that you might not even remember, then this may be just a simple bruise which will go away in a few days. If it doesn't go away then I suggest that you see your personal Physician for a breast exam and possibly an Ultrasound to determine the cause of the bruise. Having a lump along with a bruise isn't at all unusual; the bruise and lump both would be the result of bleeding in the tissues beneath the skin just like a bruise on any other part of your body.   Regards ...

[KatieDidd]

The bruise is still dark and seems to be spreading toward my nipple, and the lump is still there, no pain, but I can see it slightly protruding when I look in the mirror. I can see it and touch it, and it feels so "there", and there is no injury to explain this, and I have made an apt with a doc but now am sitting on the internet worried and stressed trying to convince myself that 8 times out of 10 it is nothing.