Im into bdsm, and some of the pains I enjoy are,
needles in my skin,
floggers and whips on my backside,
biting pinching, take down scenarios in which I am allowed to fight back, but nevertheless end up wickedly bruised,
slapping, spanking, etc. I like a little pleasure with my pain, rather than the other way around.
Pleasure in itself isn't usually enough to keep me interested, or to feel alive.