A mole came off and it hurts?

im a 15 yr old girl. a few months ago i had a mole on my side but up where my bra is. my bra had rubbed it so much and half of it was off. i didnt know it was a mole at the time because i didnt look at it. i thought it was a scab so i scratched it off. and it bled some. but then i realized it was a mole. now i just went to look at it. it now looks like a freckle. its flat and brown but it looks a little bloody. like it has some reddish to it. it only hurts when i press on it hard and its not a big pain. should i get it checked? it hasnt grown in size and its not oddly shaped.