Made an appointment to see doctor tomorrow.
I have a somewhat lumpy breasts, in a past docs sent me for ultrasound a couple of times, each time it turned out to be either a lymph node that was positioned unusually low or last time 2 inflamed nodes....anyhow I had felt two small lumps on the side of breast for some time, but as they were small and smooth and movable and I had an ultrasound only 18 months ago I thought I'll just wait and see 
So last night I found one one the inside of the breast iyswim, doesn't move much and seems irregular. Doesn't have anything similar on the other breast.
I'm 31. I know no one can diagnose on the net, just need some hand holding.