I hope my computer behaves today. Three times it turned off by itself, annoying to restart it and go open windows again.
I understand your pain.
LOL My cat Sammy was walking back and forth across my desk earlier. I have a Touch Screen. LOL
That's a common symptom of overheating, usually caused by dust or a tired fan (or both). Easy to cure. If it's a laptop, blow in the vents that circulate cooling air.