My 12 yr old cannot bear live music concerts. The bass, i think, hurts her entire body. She tells me she cant breathe, & the pain is a stab sensation in her chest & abdomen. Shes a very lean & thin build. Could a particular clothing fibre prevent this effect? Genuine physics based ideas for clothing would be really appreciated as we all hate that she's missing out & she would love to be able to attend a Billie Eilish concert with her sisters next summer 2020. TIA. Helen
What you describe are potentially serious medical symptoms. IMO you should be thinking about getting some medical advice for your daughter rather than hoping the problem will go away with a different type of clothing.
Whether it just is a temporary thing caused by your daughter's physical development putting her metabolism slightly out of balance, something stress-related, or a sign of a more serious condition like a heart problem, it needs some professional investigation. What you described is about half of the typical symptoms of a heart attack!
That said, very loud sounds can certainly be "felt" through the chest and abdomen as much as they are "heard". I work in the aerospace industry, and working near aircraft jet engines (while wearing proper protective equipment) I can sometimes "feel my chest shaking" from the high levels of low-frequency sound, and I'm definitely not "lean and thin" - I weigh more than 100 kg. But that "shaking" sensation doesn't cause any real pain or breathing difficulties.
Given the excessively loud sound levels at many live music concerts, wearing ear defenders would be good advice regardless of any other problems. There are types which are pretty much invisible "in the ear" if your daughter is worried about not looking "cool" - but better uncool than deaf, in the long term.