I have a large, hard, painful breast lump. HELP!

About 2 months ago I noticed a pain in the lower part of my right breast.  Right were you underwire on your bra would sit.  It hurt so bad that I had to go without wearing a bra for weeks.  I noticed that I had a 1 1/2 inch by 1 inch wide bump that was very painful.  I asked my mother about it and she told me that it was most likely a breast cyst and that it would go away.  Well, it did go away, but it took over 3 weeks and hurt so bad the entire time.  I was happy it was gone.  But, then about 3 days ago I noticed another lump.  This time it is again in right breast but is on the outer edge towards the middle of my chest (were your breast meet).  This one is twice the size of the other lump and equally, if not more painful.  This one is just as hard and unmoving as the last one.  I have read that breast cyst usually move, my lump does not.  I am only 29 years old.  What are these and what gets rid of them?  They hurt so bad.  I do not understand how I went my whole life w/o getting these and now I have had two in two months.  I can't stand for this to be a regular thing, they hurt so much I can't hardly touch the area.  I know I need to go to a doctor, but until my appointment comes around does anyone have any thoughts.  HELP!!!
PS:  I should mention I do have two children 10 & 2.  But, I never, ever breast feed, nor did my breast enlarge during pregnancy and leak before or after.  Don't know if I even can produce milk.