Our ears evolve from day to day, that is a fact, and not necesarily in the same direction. I give you an example. I have a HiFi system which I just turn on whenever I want to enjoy music, same volume, same headphones I have used maybe 500 hours so far (T90 beyerdynamics), these headphones are famous for being pretty harsh with bad recorded songs, and they have pretty hot treble. One song I visit very often is money from pink floyd, and from day to day, I feel that my ears detect the hot treble in the begining of the song (the cash machine sounds are my go to reference) with different intesity (sometimes more, sometimes less), and also I find differences in the way instruments are presented, separation of these.
One day I find a "perfect profile" and the next, it seems like it lost something. I never give up on a profile I found magical before, because I know it might become magic again in the future. Just my grain of salt