I like that the headache expresses the stifling feeling well.

It is an impressive song that portrays the complicated feelings caused by love as if they were a headache.
The powerful band sound created by the guitar and drums effectively conveys the song's stifling and chaotic emotions.
With the members' refreshing vocals added to the mix, listening to it makes me feel like the emotions built up inside my heart are gradually releasing.
Both the lyrics and the melody are addictive, so once you listen to it, it keeps coming to mind and you find yourself looking for it again.
If you like DAY6's intense yet emotional band music, this is a song I definitely want to recommend.