Chosen Solution
So basically, i did nothing with my phone except watch YouTube videos. Then when I woke up I just see everything inverted colors. So I check settings to try and turn it off but it says its already off. So I was super confused. I even restarted my phone. Please someone help!
You can try to reset all settings. This resets WiFi connections,Touch id,password,etc. no important data is lost. No pictures or anything else is deleted. Only settings. This could fix a software glitch. You can try to update the iOS as well. This can be a bug in your current iOS version. Worse case you can factory reset the iPhone and set it up as new. This usually fixes any software issues.
Go to siri and say turn off inverted colors (Idk if this will work I’m just trying to help)
