Iphone x having Camera flickering , white dots in camera pics and heating problems

Hi there, mashood tv!
Thanks for reaching out to the Apple Support Communities! It sounds like you are having issues with your camera and with the temperature on your iPhone and I’m happy to help! For the issues with the camera, I recommend taking a look at this article If the camera on your iPhone, iPad, or iPod touch isn't working. This article will give you the best troubleshooting steps to take for issues with your camera, along with the next steps to take if you continue to have issues.
Also, check out this article with more information about Keeping iPhone, iPad, and iPod touch within acceptable operating temperatures. This article will give you information about when you can expect your device to be warmer than normal.
Have a wonderful day!