i'm not arguing that two fresh holes in one ear aren't going to be painful when you lie down and stuff, but i quite literally have never felt a piercing in my ear. no pinch, no squeeze, nothing at all. i could get them done a thousand more times and i'm willing to bet it still wouldn't hurt. an industrial is a rad piercing, but something like an arm or neck bar, anti-eyebrow, or albert has to hurt more.
this all being said, every piercing is different for everyone, so i guess some people might find industrials more painful that nipples, but the majority of people i've talked to said they didn't hurt at all.
don't misunderstand, mang, not tryin to hate- i love piercings, they're cool as hell, so get whatever you want to get done and have fun with them.