Macbook Pro 2019 (16 inch) heating up near the left side ports and won't boot up
I have an MBP 2019 (16 inch) purchased last December. It worked perfectly fine until this morning. Last night I locked it, closed the lid, and put it inside the case. When I took it out in the morning it was heated up and won't start. I plugged it in but it didn't give any charging indication (sound or display).
Here's what I have tried, followed "If your Mac doesn't turn on - Apple Support" (https://support.apple.com/en-us/HT204267), tried SMC reset. But no response.
The thing that most bugs me is that I kept it unplugged for a while now and everywhere of the MBP is cooled except near the left side ports and it keeps heating up.
Is there any way to stop the heating or fix it?
Very grateful for any help or tips. Thanks.
MacBook Pro 16″, macOS 10.15