Ok, do those bumps hurt? Itch? If they dont, they are probably harmless, if they do, and they continoue to expend, then it's necessary to see a doc within a week.
I recently read an artical about bumps that u should and shoudnt worry about on ur body, and it's in this month's issue of redbook!
And highly recomment u to go get one and read it thru coz it's got lots of info on women's health, personally I love this magazine!
And remember it's the august issue of redbook