Ever experienced this?

Hi everyone, I'm new here and I thought this might be the right place to ask for some advice. I'm a 16-year-old guy and a few months ago I met this girl. Since then something in my life has kind of changed. The strange thing is that I can't stop thinking about her, but I'm not even sure if I actually like her. She's not really my usual type, yet she's always on my mind. I've even dreamed about her. She's the first person I think about when I wake up and the last one before I fall asleep. Sometimes I scroll through reels just looking for one to send to her. When I listen to music, I somehow end up thinking about her through the lyrics. Sometimes I hug my pillow and think about her. I've even written poems about her. When she isn't around or when we don't chat I feel sad, almost empty. I honestly don't know what this feeling is or what I should do. Has anyone experienced something like this?