It’s pretty common for people with ADHD to be able to play video games for a long time, because games are designed to make the brain pump out dopamine.

Up to you whether to get an assessment, ofc, but time blindness is a really common symptom. Your OP and others’ responses sounded really familiar to me.

Example, I recently had an argument over what a habit is. The other party claimed it’s something you do without thinking about choosing it, like muscle memory. Which I still insist is bullshit because everyone knows a habit is when you feel weird not doing the task, and the urge to avoid the wrong feeling makes you remember the task and outweighs the urge to be lazy. (Apparently this isn’t how it works for normal people?)