My back hurts and I don't know because my bra is a size too small

Excuse my curiosity, which one is better with or without bra?

take off my bra

This bra definetly doesn't have to be on

This bra definetly doesn't have to be on

This bra definetly doesn't have to be on

This bra definetly doesn't have to be on

This bra definetly doesn't have to be on

This bra definetly doesn't have to be on

This bra definetly doesn't have to be on

This bra definetly doesn't have to be on

I never wear a bra I think they are stupid