iPhone 18 Pro is overheating and not cooling down

I have had my iPhone 18 Pro since the day it was released, but I have been experiencing an extreme overheating issue. Even when doing simple things like listening to music, using Maps or scrolling through TikTok, the phone gets incredibly hot, almost to the point where it becomes uncomfortable to hold in my hand. It takes sometimes up to 30 to 45 minutes to cool down, even after I have completely stopped using it. This does not seem normal at all, and I am concerned that there might be a hardware or battery issue.