Hear me out. Superman can feel things. Fairly well established. The warmth of Lois and so on. His invulnerability doesn't necessarily translate into lack of nerve sensation across the board. He's mentioned in Post Crisis for example about how he enjoys the taste of cantaloupe melon.
Spicey food causes intense pain but doesn't actually inflict damage to your taste buds as far as I understand it. So my question is:
Would Superman or other extremely durable/invulnerable characters be susceptible to the pain inflicted by spicey food?