I hope you're using some sort of hearing protection, with or without headphones. It won't take long before you start encountering permanent hearing loss otherwise.I like to play without headphone because I like to hear the real sound of my drumset, it is good for practice dinamics for example. For metronome I use a speaker. But when I play over records I use a headphone and also I record to listen to after my practice. Of course for practice hours and hours fills for example I use a headphone.