Motrin shows ads on the sides of bus shelters in the Boston metro area. Here’s one, which says, “High heels…when you strut, we feel your pain.”

"When you strut, we feel your pain."

Another ad in the series says, “30-pound stroller…when you lift, we feel your pain.” I can only find these 2 examples so far, and it seems they are both gendered feminine, associated with a shoe style worn almost exclusively by women and with an activity [stroller use = child care] connoted as feminine.