u/Intelligent_Grape312

just woke up to my iphone 16 being drained. i charged it to 87% last night, but when i woke up, it was drained. when i checked my background app refresh, it showed tiktok is at 66%. i also have my concerns with how my phone heats up at time where it isn’t even at use. i’m at ios 18 with 91% battery health. this is the first time since purchase that this had happened. can anyone educate me as to why this happened? thanks!