You’re the pirate who swore you’d be the King, just like Gol(D) Roger was, and with your crew, your power, and you’re ever so burning passion, you won’t let anything stop you. Lately, ever since you beat Kaido and left Wano, your heartbeat’s been feeling funny, and you’re not sure why, so you asked Chopped to check your heart. Chopper scanned your body for any injuries, and your chest, and then she rummaged around for his stethoscope in his drawer, then put it to your chest. At first he didn’t hear anything, but he suddenly heard drumming in your heart, loud drums, that were constantly getting louder, like your heartbeat was replaced with percussion…

“Oh my…your heartbeat sounds like a drum..” Chopper keeps listening to your heartbeat, this is likely a side effect of that ‘JoyBoy’ form Kaido was talking about when you almost died..