MacBook Pro fan runs loud constantly and battery draining within a couple of hours
My MacBook Pro 2020 Intel Core i5 has been draining of battery incredibly quickly recently. It started with the occasional day where the fan would run loudly despite only having one or two applications open. When this happens, the battery (when not plugged in) drains extremely quickly even when the lid is down. It has gone from 100% to 0% in under two hours with minimal/no use when not plugged in. This is getting ridiculous because then it started on a weekly and now daily basis. My fan is constantly running at high speed and it is so loud it keeps me up at night - it just doesn't seem to be stopping at the moment.
I am wondering what is causing this and how I can fix it because it is hugely affecting my use of my computer!
MacBook Pro 13″, macOS 14.4