Screenshot from earlier stuck on screen faded

[Ryan7ful]

Last night I lost my brick for my LG V10 charger. So before I went to bed last night, I used the same cord but plugged it into a brick for an iphone/ipad. I woke up this morning with the high temperature notification on my screen, phone was almost too hot to touch, and after all that it only charged to 72%. Since then, the high temperature notification only faded to be really dim, rather than going away. Its almost unnoticeable except for when I use the camera. Snapchat was open when I went to sleep last night and it looks like it took a screenshot of my snapchat contacts with the temperature notification. It's all super dim and only really visible when in certain apps and very noticeable when in the camera/snapchat. I've also tried restarting/powering off multiple times as well as closing all the apps.

Thanks for the help.