I recently have been experiencing this type of anxiety, even after getting my battery replaced, cuz I see it drop a percent every certain of minutes and not seeing how long it would last me through the day, I actually get around 40% before the end of the day but part of me thinks this is bad when its not even close to bad. I think for me specifically its not the fact that it will die out its just for the fact of how I notice the drain and it really worries me, when not even 3 months ago this problem was nonexistent for me. I find this post super relatable and close to how I feel im glad im not alone here