Sorry, no one here can know without tests. Could be something major, might be no big deal. Good luck at the vet!

It looks like there are two lumps. yesterday I only noticed one, the bigger one behind the smaller one. I will take her to a clinic...i just want to have an idea of what it is. cancer? tumor?

http://tinypic.com/view.php?pic=2hwmgox&s=8

http://tinypic.com/view.php?pic=16aqvjp&s=8