Moley moley

Ok seriously.

My boyfriend and I showered together the night before last, he pointed at a pimple on my back lol.

I stepped out of the shower for a second to look only to see that it was one of the few moles I have on my back.

I said, "oh that's just a mole"

I reached back to touch it but it was really sore to the touch. Enough so that I automatically pulled my hand away because of the pain So then I second guessed myself and thought it was a pimple and messed with it.

Left it alone, and it's still sore to the touch and I definitely know it's a mole now and it was mistaken for a pimple.

None of my moles have ever hurt though, could it be infected or something? Anyone experience this?