If human memory on average is so unreliable as to put a lot of innocent people behind bars because they kinda look like somebody then it wouldn't be too strange if your mood affects your perception of sound as well.
Fatigue etc also factors in how well you can hear, like making things less clear and yet not in the same sense as when people with high freq hearing loss complain about Sennheisers being the Taliban/ISIL Of Treble, but unclear and yet piercing. Like a car without time alignment and tweeters firing up into the windshield and cancellation vs the sub in the trunk.
And then there's how you wear the headphone. See different chassis and earpad designs like the angled mounts on some headphones or angled earpads from AKG, Audeze, and HiFiMan, plus various aftermarket pads? Positioning the driver differently relative to your ear canal can affect the sound, and these are ways to influence that at the design stage. They still don't control how you wear them, like how Grados stab your ears if worn directly over the ear canal like how they would seem ergonomically sensible but if you moved them forward a bit they tend to not stab your ears (just make some people's cheeks itch, which in my case is the real benefit of the sock mod as cotton is less irritating than rougher, more porous foam).*
*that assumes you used clean or brand new socks; otherwise, that's gross, and yes, they'll itch
