Recently I have had a problem where when I play, I randomly go touchscreen mode. I went on a paint app to see where the disturbance was coming from. I managed to tak a quick screenshot -

I tried cleaning the area it was coming from, but it didn't work. I restarted my Chromebook, but it started again after a few hours

HELP

this is either a virus, or something is seriously wrong with the computer

Its my school one Ive had for like a year now