Hello Devard,
Can you please check if the problem occurs when the laptop is plugged-in to the power supply or when running on battery?
If the problem is there in both the cases and as you mentioned that you can feel the heat from the bottom, you should open the laptop cover from the back, and clean the cooling fan.
If the problem persists, you may need to take it to an authorized service center as the issue seems to be related to the hardware.
Good Luck!!