I find music difficult to listen to due to the hearing distortion I have, but my ears also get fatigued by moderately loud sounds ~50db and it will spike my constant tones up as well. You may be suffering from some of the same symptoms I have.
Lower frequencies are interpreted differently than higher ones, so you could be exposing yourself to more bass than you know. Consumer Audio all throughout the mid 90s until quite recently tendeded to have very exaggerated bass production, and unless you are measuring it with a good decibel meter, I would not trust an app, especially not for bass, cell phone microphones aren't traditionally known for being good at recording low frequencies at all... (though they are improving of course).
Lower frequencies are interpreted differently than higher ones, so you could be exposing yourself to more bass than you know. Consumer Audio all throughout the mid 90s until quite recently tendeded to have very exaggerated bass production, and unless you are measuring it with a good decibel meter, I would not trust an app, especially not for bass, cell phone microphones aren't traditionally known for being good at recording low frequencies at all... (though they are improving of course).