What could be wrong with me? Does this sound like ADD/ADHD?

Well it doesn't worsen, it just feels like it's getting worse because it's untreated and you recognized the symptoms more. ADHD / ADD is when you feel like you can't concentrate no matter what you do, you may feel voices in your head talking to you when you want it to stop and it gets in the way of your studies, meetings, things you need high focus on. Sometimes you become forgetful to tasks people ask you to do, in which I happen to write things down so I get the memo the next morning. Getting distracted easily is a sign, but it's mainly focus or your thoughts are going too fast to keep up with it distracts u or makes it harder for you to focus on the things you need/want to.